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1.
Int J Epidemiol ; 53(5)2024 Aug 14.
Artículo en Inglés | MEDLINE | ID: mdl-39242079

RESUMEN

BACKGROUND: The impact of migration on HIV risk among non-migrating household members is poorly understood. We measured HIV incidence among non-migrants living in households with and without migrants in Uganda. METHODS: We used four survey rounds of data collected from July 2011 to May 2018 from non-migrant participants aged 15-49 years in the Rakai Community Cohort Study. Non-migrants were individuals with no-migration between surveys or at the prior survey. Household migration was defined as ≥1 household member migrating into or out of the house from another community between surveys (∼18 months). Incident HIV was defined as testing HIV seropositive following a negative result. Incidence rate ratios (IRRs) were estimated using Poisson regression with generalized estimating equations. Analyses were stratified by gender, migration into or out of the household and the relationship between non-migrants and migrants (e.g. spouse, child). RESULTS: About 11 318 non-migrants (5674 women) were followed for 37 320 person-years. Twenty-eight percent (6059/21 370) of non-migrant person-visits had recent migration into or out of the household, and 240 HIV incident cases were identified. Overall, non-migrants in migrant households were not at greater risk of acquiring HIV than non-migrants in households without any migration. However, men were significantly more likely to acquire HIV if their spouse had recently migrated in [adjusted IRR: 2.12; 95% confidence interval (CI): 1.05-4.27] or out (adjusted IRR: 4.01; 95% CI, 2.16-7.44) compared with men with no spousal migration. CONCLUSIONS: HIV incidence is higher among non-migrant men with migrant spouses. Targeted HIV testing and prevention interventions like pre-exposure prophylaxis could be considered for men with migrant spouses.


Asunto(s)
Composición Familiar , Infecciones por VIH , Migrantes , Humanos , Uganda/epidemiología , Masculino , Femenino , Incidencia , Adulto , Infecciones por VIH/epidemiología , Adolescente , Persona de Mediana Edad , Adulto Joven , Migrantes/estadística & datos numéricos , Estudios de Cohortes , Factores de Riesgo
2.
Artículo en Inglés | MEDLINE | ID: mdl-39252694

RESUMEN

In developing countries like Uganda, people with dementia are cared for by non-medically trained family members with minimal support from the formal healthcare system. The quality of care in this setting is largely unknown but significantly affects the well-being of those with dementia. A tool designed to measure the quality of informal care for old frail adults with or without dementia was translated into Luganda. A committee of experts reviewed and finalized the translation, which was pilot-tested and then used to measure the quality of dementia self-care. We consecutively enrolled 105 caregivers of elderly people with dementia; the median age was 35 years (Interquartile Range 26-47 years), and 67% were females, taking care of a grandparent (44%) or a parent (34%). We used confirmatory factor analysis to assess for structural validity and computed correlation coefficients and Cronbach's alpha to assess for discriminant validity and internal reliability, respectively. The three-factor model applied to the 20 items, adequately fit the data (Comparative Fit Index = 0.88, Tucker-Lewis Index = 0.87, Root Mean Square Error of Approximation = 0.08; 90% Confidence Interval (0.06-0.09), Standardized Root Mean Square Residual = 0.089). There was good discriminant validity, and correlation coefficients between dimensions/scales and the Dementia Knowledge Assessment Scale scores were low. There was good internal reliability with all items Cronbach's alpha ranging from 0.69 to 0.89. Our findings demonstrated that this culturally adapted, shorter measurement tool is valid and reliable. The tool can be used by researchers, health workers, and agencies to assess the quality of self-care for elderly people with dementia in Uganda.

3.
JAMIA Open ; 7(3): ooae069, 2024 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-39044942

RESUMEN

Objectives: Public sharing of de-identified biomedical data promotes collaboration between researchers and accelerates the development of disease prevention and treatment strategies. However, open-access data sharing presents challenges to researchers who need to protect the privacy of study participants, ensure that data are used appropriately, and acknowledge the inputs of all involved researchers. This article presents an approach to data sharing which addresses the above challenges by using a publicly available dashboard with de-identified, aggregated participant data from a large HIV surveillance cohort. Materials and Methods: Data in this study originated from the Rakai Community Cohort Study (RCCS), which was integrated into a centralized data mart as part of a larger data management strategy for the Rakai Health Sciences Program in Uganda. These data were used to build a publicly available, protected health information (PHI)-secured visualization dashboard for general research use. Results: Using two unique case studies, we demonstrate the capability of the dashboard to generate the following hypotheses: firstly, that HIV prevention strategies ART and circumcision have differing levels of impact depending on the marital status of investigated communities; secondly, that ART is very successful in comparison to circumcision as an interventional strategy in certain communities. Discussion: The democratization of large-scale anonymized epidemiological data using public-facing dashboards has multiple benefits, including facilitated exploration of research data and increased reproducibility of research findings. Conclusion: By allowing the public to explore data in depth and form new hypotheses, public-facing dashboard platforms have significant potential to generate new relationships and collaborations and further scientific discovery and reproducibility.

4.
Res Sq ; 2024 Apr 29.
Artículo en Inglés | MEDLINE | ID: mdl-38746257

RESUMEN

Background: Empirical data on transportation access and HIV treatment outcomes in sub-Saharan Africa are rare. We assessed the association between household transport ownership and HIV viral suppression in rural Uganda. Methods: The study was conducted among people living with HIV aged 15-49 years using cross-sectional data from the Rakai Community Cohort Study (RCCS), collected from June 14, 2018, to November 6, 2020. Transport ownership was defined as household possession of a car, motorcycle, or bicycle. HIV viral suppression was defined as < 1000 HIV RNA copies/ml. Poisson regression with robust variance estimation identified unadjusted and adjusted prevalence ratios and 95% confidence intervals (CI) of HIV viral suppression by transport ownership. Results: The study included 3,060 persons aged 15-49 living with HIV. Overall HIV viral suppression was 86.5% and was higher among women compared to men (89.3% versus 81.6%; adjusted prevalence ratio: 1.14, 95% CI: 1.10, 1.18). A total of 874 participants (28.6%) resided in households that owned at least one means of transport. HIV viral suppression was 79.8% among men and 88.2% among women from households without any means of transport, compared to 85.4% among men and 92.4% among women from households with at least one means of transport. Adjusted prevalence ratios of HIV viral suppression were 1.11 (95% CI: 1.04, 1.18) for males and 1.06 (95% CI: 1.03, 1.10) for females from households owning at least one means of transport compared with those from households with none. Conclusion: There was increased HIV viral suppression among people living with HIV from households with transport means compared to those from households without transport means, suggesting transport may facilitate access to, and continued engagement with, HIV treatment services.

5.
medRxiv ; 2024 Apr 22.
Artículo en Inglés | MEDLINE | ID: mdl-38712115

RESUMEN

Introduction: To prioritize and tailor interventions for ending AIDS by 2030 in Africa, it is important to characterize the population groups in which HIV viraemia is concentrating. Methods: We analysed HIV testing and viral load data collected between 2013-2019 from the open, population-based Rakai Community Cohort Study (RCCS) in Uganda, to estimate HIV seroprevalence and population viral suppression over time by gender, one-year age bands and residence in inland and fishing communities. All estimates were standardized to the underlying source population using census data. We then assessed 95-95-95 targets in their ability to identify the populations in which viraemia concentrates. Results: Following the implementation of Universal Test and Treat, the proportion of individuals with viraemia decreased from 4.9% (4.6%-5.3%) in 2013 to 1.9% (1.7%-2.2%) in 2019 in inland communities and from 19.1% (18.0%-20.4%) in 2013 to 4.7% (4.0%-5.5%) in 2019 in fishing communities. Viraemia did not concentrate in the age and gender groups furthest from achieving 95-95-95 targets. Instead, in both inland and fishing communities, women aged 25-29 and men aged 30-34 were the 5-year age groups that contributed most to population-level viraemia in 2019, despite these groups being close to or had already achieved 95-95-95 targets. Conclusions: The 95-95-95 targets provide a useful benchmark for monitoring progress towards HIV epidemic control, but do not contextualize underlying population structures and so may direct interventions towards groups that represent a marginal fraction of the population with viraemia.

6.
BMC Infect Dis ; 24(1): 391, 2024 Apr 11.
Artículo en Inglés | MEDLINE | ID: mdl-38605355

RESUMEN

BACKGROUND: Vaccination has been recommended as one of the approaches for the control of COVID-19 pandemic. However, adequate vaccine coverage is critical to the effectiveness of the vaccine at population level. Data on acceptability of the vaccine in Ugandan urban areas are limited. This study examined the prevalence, factors associated with willingness to accept COVID-19 vaccine including reasons for not taking COVID-19 vaccine in a predominantly urban population of Wakiso, central Uganda. METHODS: Data were obtained from a cross-sectional study conducted between March 1st, 2021 and September 30th, 2021 in the urban population-based cohort of the Africa Medical and behavioral Sciences Organization (AMBSO). A Multivariable modified Poisson regression analysis was used to estimate adjusted prevalence ratios (aPR) and 95% confidence intervals of willingness to accept the COVID-19 vaccine. RESULTS: A total of 1,903 participants were enrolled in this study; 61% of whom were females. About 63% of participants indicated their willingness to accept the COVID-19 vaccine. Persons aged 13-19 years (aPR = 0.79; [95% CI: 0.74, 0.84]) or 20-29years (aPR = 0.93; [95% CI: 0.88, 0.98]) were less likely to accept the vaccine compared to persons aged 40-49 years. Persons with post-primary level of education (aPR = 1.05; [95% CI: 1.02, 1.09]) were more likely to accept the vaccine compared to persons with primary level of education. Additionally, students or individuals working in government (aPR = 1.13; [95% CI: 1.04, 1.23]) were more likely to accept the vaccine compared to individuals doing construction and Mechanic work as their main occupation. Reported reasons for not taking a COVID-19 vaccine included; concerns about side effects of the vaccine 154(57.0%), 64(23.7%) did not think the vaccines were effective, while 32(11.9%) did not like the vaccines. CONCLUSION: A substantial proportion of individuals were not willing to accept the COVID-19 vaccine. Health education campaigns on vaccination within urban communities could help reduce COVID-19 vaccine misconceptions in the urban populations more especially the young and persons with low levels of formal education.


Asunto(s)
COVID-19 , Vacunas , Femenino , Humanos , Masculino , Vacunas contra la COVID-19 , Estudios Transversales , Uganda/epidemiología , Pandemias , COVID-19/epidemiología , COVID-19/prevención & control , Vacunación
7.
medRxiv ; 2024 Mar 30.
Artículo en Inglés | MEDLINE | ID: mdl-38585794

RESUMEN

Background: There are limited population-level data on the pre-exposure prophylaxis (PrEP) care continuum in eastern Africa. Here, we assessed the PrEP care continuum following PrEP rollout in a Ugandan community with ~40% HIV seroprevalence. Methods: We used cross-sectional population-based data collected between September 3 and December 19, 2018 from a Lake Victoria fishing community in southern Uganda to measure levels of self-reported PrEP knowledge, ever use, and discontinuation following 2017 PrEP rollout via a U.S. President's Emergency Plan for AIDS Relief (PEPFAR)-supported phased implementation program. Our analysis included HIV-seronegative persons reporting having ever received an HIV test result. We examined associations between demographic, behavioral, and health utilization factors with each outcome using age-adjusted modified Poisson regression. Results: There were 1,401 HIV-seronegative participants, of whom 1,363 (97.3%) reported ever receiving an HIV test result. Median age was 29 years (IQR: 23-36), and 42.3% (n=577) were women. Most (85.5%; n=1,166) participants reported PrEP knowledge, but few (14.5%; n=197) reported ever using PrEP. Among 375 (47.7%) men and 169 (29.3%) women PrEP-eligible at time of survey, 18.9% (n=71) and 27.8% (n=47) reported ever using PrEP, respectively. Over half (52.3%, n=103) of those who had ever used PrEP, self-reported current use. Conclusion: In this Lake Victoria fishing community, there were low levels of PrEP use despite high levels of PrEP awareness and eligibility, particularly among men. Efforts that enhance awareness of HIV risk and increase PrEP accessibility may help increase PrEP use among HIV-seronegative persons in African settings with high HIV burden.

8.
medRxiv ; 2024 Mar 15.
Artículo en Inglés | MEDLINE | ID: mdl-38558994

RESUMEN

HIV incidence has been declining in Africa with scale-up of HIV interventions. However, there is limited data on HIV evolutionary trends in African populations with waning epidemics. We evaluated changes in HIV viral diversity and genetic divergence in southern Uganda over a twenty-five-year period spanning the introduction and scale-up of HIV prevention and treatment programs using HIV sequence and survey data from the Rakai Community Cohort Study, an open longitudinal population-based HIV surveillance cohort. Gag (p24) and env (gp41) HIV data were generated from persons living with HIV (PLHIV) in 31 inland semi-urban trading and agrarian communities (1994 to 2018) and four hyperendemic Lake Victoria fishing communities (2011 to 2018) under continuous surveillance. HIV subtype was assigned using the Recombination Identification Program with phylogenetic confirmation. Inter-subtype diversity was estimated using the Shannon diversity index and intra-subtype diversity with the nucleotide diversity and pairwise TN93 genetic distance. Genetic divergence was measured using root-to-tip distance and pairwise TN93 genetic distance analyses. Evolutionary dynamics were assessed among demographic and behavioral sub-groups, including by migration status. 9,931 HIV sequences were available from 4,999 PLHIV, including 3,060 and 1,939 persons residing in inland and fishing communities, respectively. In inland communities, subtype A1 viruses proportionately increased from 14.3% in 1995 to 25.9% in 2017 (p<0.001), while those of subtype D declined from 73.2% in 1995 to 28.2% in 2017 (p<0.001). The proportion of viruses classified as recombinants significantly increased by more than four-fold. Inter-subtype HIV diversity has generally increased. While p24 intra-subtype genetic diversity and divergence leveled off after 2014, diversity and divergence of gp41 increased through 2017. Inter- and intra-subtype viral diversity increased across all population sub-groups, including among individuals with no recent migration history or extra-community sexual partners. This study provides insights into population-level HIV evolutionary dynamics in declining African HIV epidemics following the scale-up of HIV prevention and treatment programs. Continued molecular surveillance may provide a better understanding of the dynamics driving population HIV evolution and yield important insights for epidemic control and vaccine development.

9.
Biometrics ; 80(1)2024 Jan 29.
Artículo en Inglés | MEDLINE | ID: mdl-38372402

RESUMEN

Viral deep-sequencing data play a crucial role toward understanding disease transmission network flows, providing higher resolution compared to standard Sanger sequencing. To more fully utilize these rich data and account for the uncertainties in outcomes from phylogenetic analyses, we propose a spatial Poisson process model to uncover human immunodeficiency virus (HIV) transmission flow patterns at the population level. We represent pairings of individuals with viral sequence data as typed points, with coordinates representing covariates such as gender and age and point types representing the unobserved transmission statuses (linkage and direction). Points are associated with observed scores on the strength of evidence for each transmission status that are obtained through standard deep-sequence phylogenetic analysis. Our method is able to jointly infer the latent transmission statuses for all pairings and the transmission flow surface on the source-recipient covariate space. In contrast to existing methods, our framework does not require preclassification of the transmission statuses of data points, and instead learns them probabilistically through a fully Bayesian inference scheme. By directly modeling continuous spatial processes with smooth densities, our method enjoys significant computational advantages compared to previous methods that rely on discretization of the covariate space. We demonstrate that our framework can capture age structures in HIV transmission at high resolution, bringing valuable insights in a case study on viral deep-sequencing data from Southern Uganda.


Asunto(s)
Infecciones por VIH , VIH-1 , Humanos , Infecciones por VIH/epidemiología , Filogenia , Teorema de Bayes
10.
J Int AIDS Soc ; 27(2): e26200, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-38332519

RESUMEN

INTRODUCTION: Population-level data on durable HIV viral load suppression (VLS) following the implementation of Universal Test and Treat (UTT) in Africa are limited. We assessed trends in durable VLS and viraemia among persons living with HIV in 40 Ugandan communities during the UTT scale-up. METHODS: In 2015-2020, we measured VLS (<200 RNA copies/ml) among participants in the Rakai Community Cohort Study, a longitudinal population-based HIV surveillance cohort in southern Uganda. Persons with unsuppressed viral loads were characterized as having low-level (200-999 copies/ml) or high-level (≥1000 copies/ml) viraemia. Individual virologic outcomes were assessed over two consecutive RCCS survey visits (i.e. visit-pairs; ∼18-month visit intervals) and classified as durable VLS (<200 copies/ml at both visits), new/renewed VLS (<200 copies/ml at follow-up only), viral rebound (<200 copies/ml at initial visit only) or persistent viraemia (≥200 copies/ml at both visits). Population prevalence of each outcome was assessed over calendar time. Community-level prevalence and individual-level predictors of persistent high-level viraemia were also assessed using multivariable Poisson regression with generalized estimating equations. RESULTS: Overall, 3080 participants contributed 4604 visit-pairs over three survey rounds. Most visit-pairs (72.4%) exhibited durable VLS, with few (2.5%) experiencing viral rebound. Among those with any viraemia at the initial visit (23.5%, n = 1083), 46.9% remained viraemic through follow-up, 91.3% of which was high-level viraemia. One-fifth (20.8%) of visit-pairs exhibiting persistent high-level viraemia self-reported antiretroviral therapy (ART) use for ≥12 months. Prevalence of persistent high-level viraemia varied substantially across communities and was significantly elevated among young persons aged 15-29 years (vs. 40- to 49-year-olds; adjusted risk ratio [adjRR] = 2.96; 95% confidence interval [95% CI]: 2.21-3.96), males (vs. females; adjRR = 2.40, 95% CI: 1.87-3.07), persons reporting inconsistent condom use with non-marital/casual partners (vs. persons with marital/permanent partners only; adjRR = 1.38, 95% CI: 1.10-1.74) and persons reporting hazardous alcohol use (adjRR = 1.09, 95% CI: 1.03-1.16). The prevalence of persistent high-level viraemia was highest among males <30 years (32.0%). CONCLUSIONS: Following universal ART provision, most persons living with HIV in south-central Uganda are durably suppressed. Among persons exhibiting any viraemia, nearly half exhibited high-level viraemia for ≥12 months and reported higher-risk behaviours associated with onward HIV transmission. Intensified efforts linking individuals to HIV treatment services could accelerate momentum towards HIV epidemic control.


Asunto(s)
Fármacos Anti-VIH , Infecciones por VIH , VIH-1 , Masculino , Femenino , Humanos , Estudios de Cohortes , Uganda/epidemiología , Carga Viral , Viremia/diagnóstico , Viremia/tratamiento farmacológico , Viremia/epidemiología , Infecciones por VIH/diagnóstico , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/epidemiología , VIH-1/genética , Fármacos Anti-VIH/uso terapéutico
11.
PLOS Glob Public Health ; 4(2): e0002891, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38377078

RESUMEN

Certain occupations have been associated with heightened risk of HIV acquisition and spread in sub-Saharan Africa, including female bar and restaurant work and male transportation work. However, data on changes in population prevalence of HIV infection and HIV incidence within occupations following mass scale-up of African HIV treatment and prevention programs is very limited. We evaluated prospective data collected between 1999 and 2016 from the Rakai Community Cohort Study, a longitudinal population-based study of 15- to 49-year-old persons in Uganda. Adjusted prevalence risk ratios for overall, treated, and untreated, prevalent HIV infection, and incidence rate ratios for HIV incidence with 95% confidence intervals were estimated using Poisson regression to assess changes in HIV outcomes by occupation. Analyses were stratified by gender. There were 33,866 participants, including 19,113 (56%) women. Overall, HIV seroprevalence declined in most occupational subgroups among men, but increased or remained mostly stable among women. In contrast, prevalence of untreated HIV substantially declined between 1999 and 2016 in most occupations, irrespective of gender, including by 70% among men (12.3 to 4.2%; adjPRR = 0.30; 95%CI:0.23-0.41) and by 78% among women (14.7 to 4.0%; adjPRR = 0.22; 95%CI:0.18-0.27) working in agriculture, the most common self-reported primary occupation. Exceptions included men working in transportation. HIV incidence similarly declined in most occupations, but there were no reductions in incidence among female bar and restaurant workers, women working in local crafts, or men working in transportation. In summary, untreated HIV infection and HIV incidence have declined within most occupational groups in Uganda. However, women working in bars/restaurants and local crafts and men working in transportation continue to have a relatively high burden of untreated HIV and HIV incidence, and as such, should be considered priority populations for HIV programming.

12.
Microbiol Spectr ; 12(2): e0325323, 2024 Feb 06.
Artículo en Inglés | MEDLINE | ID: mdl-38189332

RESUMEN

Rapid HIV tests are critical to HIV surveillance and universal testing and treatment programs. We assessed longitudinal patterns in indeterminate HIV rapid test results in an African population-based cohort. Prospective HIV rapid antibody test results, defined by two parallel rapid tests, among participants aged 15-49 years from three survey rounds of the Rakai Community Cohort Study, Uganda, from 2013 to 2018, were assessed. An indeterminate result was defined as any weak positive result or when one test was negative and the other was positive. A total of 31,405 participants contributed 54,459 person-visits, with 15,713 participants contributing multiple visits and 7,351 participants contributing 3 visits. The prevalence of indeterminate results was 2.7% (1,490/54,469). Of the participants with multiple visits who initially tested indeterminate (n = 591), 40.4% were negative, 18.6% were positive, and 41.0% were indeterminate at the subsequent visit. Of the participants with two consecutive indeterminate results who had a third visit (n = 67), 20.9% were negative, 9.0% were positive, and 70.2% remained indeterminate. Compared to a prior negative result, a prior indeterminate result was strongly associated with a subsequent indeterminate result [adjusted prevalence ratio, 23.0 (95% CI = 20.0-26.5)]. Compared to men, women were more likely to test indeterminate than negative [adjusted odds ratio, 2.3 (95% CI = 2.0-2.6)]. Indeterminate rapid HIV test results are highly correlated within an individual and 0.6% of the population persistently tested indeterminate over the study period. A substantial fraction of people with an indeterminate result subsequently tested HIV positive at the next visit, underscoring the importance of follow-up HIV testing protocols.IMPORTANCERapid HIV tests are a critical tool for expanding HIV testing and treatment to end the HIV epidemic. The interpretation and management of indeterminate rapid HIV test results pose a unique challenge for connecting all people living with HIV to the necessary care and treatment. Indeterminate rapid HIV test results are characterized by any weak positive result or discordant results (when one test is negative and the other is positive). We systematically tested all participants of a Ugandan population-based, longitudinal cohort study regardless of prior test results or HIV status to quantify longitudinal patterns in rapid HIV test results. We found that a substantial fraction (>15%) of participants with indeterminate rapid test results subsequently tested positive upon follow-up testing at the next visit. Our findings demonstrate the importance of follow-up HIV testing protocols for indeterminate rapid HIV test results.


Asunto(s)
Infecciones por VIH , Masculino , Humanos , Femenino , Estudios de Cohortes , Estudios Prospectivos , Infecciones por VIH/epidemiología , Estudios Longitudinales , Uganda/epidemiología , Prueba de VIH
13.
Nat Microbiol ; 9(1): 35-54, 2024 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-38052974

RESUMEN

HIV incidence in eastern and southern Africa has historically been concentrated among girls and women aged 15-24 years. As new cases decline with HIV interventions, population-level infection dynamics may shift by age and gender. Here, we integrated population-based surveillance of 38,749 participants in the Rakai Community Cohort Study and longitudinal deep-sequence viral phylogenetics to assess how HIV incidence and population groups driving transmission have changed from 2003 to 2018 in Uganda. We observed 1,117 individuals in the incidence cohort and 1,978 individuals in the transmission cohort. HIV viral suppression increased more rapidly in women than men, however incidence declined more slowly in women than men. We found that age-specific transmission flows shifted: whereas HIV transmission to girls and women (aged 15-24 years) from older men declined by about one-third, transmission to women (aged 25-34 years) from men that were 0-6 years older increased by half in 2003 to 2018. Based on changes in transmission flows, we estimated that closing the gender gap in viral suppression could have reduced HIV incidence in women by half in 2018. This study suggests that HIV programmes to increase HIV suppression in men are critical to reduce incidence in women, close gender gaps in infection burden and improve men's health in Africa.


Asunto(s)
Infecciones por VIH , Masculino , Humanos , Femenino , Anciano , Infecciones por VIH/epidemiología , Uganda/epidemiología , Estudios de Cohortes , Genómica , Incidencia
14.
Clin Infect Dis ; 78(6): 1591-1600, 2024 Jun 14.
Artículo en Inglés | MEDLINE | ID: mdl-38114162

RESUMEN

BACKGROUND: A substantial proportion of persons on antiretroviral therapy (ART) considered lost to follow-up have actually transferred their human immunodeficiency virus (HIV) care to other facilities. However, the relationship between facility switching and virologic outcomes, including viral rebound, is poorly understood. METHODS: We used data from 40 communities (2015-2020) in the Rakai Community Cohort Study to estimate incidence of facility switching and viral rebound. Persons aged 15-49 years with serologically confirmed HIV who self-reported ART use and contributed ≥1 follow-up visit were included. Facility switching and virologic outcomes were assessed between 2 consecutive study visits (ie, index and follow-up visits, interval of approximately 18 months). Those who reported different HIV treatment facilities between index and follow-up study visits were classified as having switched facilities. Virologic outcomes included viral rebound among individuals initially suppressed (<200 copies/mL). Multivariable Poisson regression was used to estimate associations between facility switching and viral rebound. RESULTS: Overall, 2257 persons who self-reported ART use (median age, 35 years; 65% female, 92% initially suppressed) contributed 3335 visit-pairs and 5959 person-years to the analysis. Facility switching was common (4.8 per 100 person-years; 95% confidence interval [CI], 4.2-5.5) and most pronounced in persons aged <30 years and fishing community residents. Among persons suppressed at their index visit (n = 2076), incidence of viral rebound was more than twice as high in persons who switched facilities (adjusted incidence rate ratio = 2.27; 95% CI, 1.16-4.45). CONCLUSIONS: Facility switching was common and associated with viral rebound among persons initially suppressed. Investments in more agile, person-centered models for mobile clients are needed to address system inefficiencies and bottlenecks that can disrupt HIV care continuity.


Asunto(s)
Fármacos Anti-VIH , Infecciones por VIH , Carga Viral , Humanos , Adulto , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/epidemiología , Infecciones por VIH/virología , Uganda/epidemiología , Femenino , Masculino , Persona de Mediana Edad , Adolescente , Adulto Joven , Incidencia , Fármacos Anti-VIH/uso terapéutico , Instituciones de Salud/estadística & datos numéricos , Estudios de Cohortes
15.
PLOS Glob Public Health ; 3(12): e0002688, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-38079382

RESUMEN

Modern contraceptive use has increased globally, but unmet needs persist in low- and middle-income countries. This study in Uganda aimed to examine the prevalence and factors influencing the use of short-acting reversible contraceptives (SARC) like pills and long-term methods such as intrauterine devices. Limited evidence exists on the use of SARC and long-term methods in Uganda. Data from the Africa Medical and Behavioural Sciences Organization (AMBSO) Population Health Surveillance (APHS) in Hoima and Wakiso districts were analysed. Among the 1642 women aged 15-49 years, the prevalence of modern contraceptive use was 30% for SARC, and 18% for long-term method. Women with formal education were three times more likely to use long-term methods than those without formal education, relative risk ratios (RRR), 3.1-3.4, (95%CI 1.2-8.2). Joint decision-making for contraceptive use increased SARC usage, RRR 1.4 (95%CI 1.1-1.8). Urbanization played a role, with women in more urbanized Wakiso district less likely to use any modern contraception, RRR 0.6-0.7 (95%CI 0.5-0.9) compared to those living in the less urbanized Hoima. About half of the women in the study used modern contraceptives and the use of SARC was almost twice that of long-term methods. Increased access to contraception education for all women of reproductive age could significantly improve the use of long-term methods which offer more reliable protection against unintended pregnancies. The findings shed light on the need to strengthen both general and sexuality education to girls and women and to tailor contraception access for all in need, for mobile semi-urban as well as rural women. Well-informed strategies that engage young men and male partners in informed decision-making for contraceptive use could enhance progress.

16.
BMC Prim Care ; 24(1): 263, 2023 12 05.
Artículo en Inglés | MEDLINE | ID: mdl-38053058

RESUMEN

BACKGROUND: Efforts have been invested towards cessation of tobacco use among youths aged 18-35 years, however, motivators for continued tobacco smoking and reasons for quitting are limited in Ugandan settings. Therefore, this study aimed to explore motivations for continued tobacco smoking and reasons for quitting in Wakiso district Uganda. METHODS: This study used explanatory sequential method. Data from a Population-based survey collected from October 2019 to September 2020 was used to select participants for this qualitative study. Twenty-three in-depths interviews were conducted from July to October 2021 among youths (18-35years old) who reported continued tobacco use and those who quit. Data were analyzed using a team-based thematic content approach with the help of NVivo. RESULTS: Data was collected from a total of twenty three participants, fourteen were tobacco quitters and nine were current tobacco smokers. Recurrent habit, desire to complement the use of other drugs, peer pressure, using smoking as a replacement for alcohol consumption, low tobacco prices, smoking as a tradition were reported as motivators for continued tobacco smoking. However, reported reasons for quitting smoking by youths included; packaging health warnings, school based prevention programs, fear of associated health risks due to tobacco use, embarrassment from family members. CONCLUSION: Targeted, and tailored tobacco prevention counselling through family support programs, intensified health education on the risks of smoking, and implementing stronger health warnings on tobacco packaging can be employed to reduce or stop tobacco use among urban youth.


Asunto(s)
Cese del Hábito de Fumar , Adolescente , Humanos , Motivación , Fumar/efectos adversos , Fumar/epidemiología , Cese del Hábito de Fumar/métodos , Fumar Tabaco/efectos adversos , Fumar Tabaco/epidemiología , Uganda/epidemiología
17.
medRxiv ; 2023 Dec 10.
Artículo en Inglés | MEDLINE | ID: mdl-38106065

RESUMEN

Introduction: In sub-Saharan Africa, migrants are more likely to be HIV seropositive and viremic than non-migrants. However, little is known about HIV prevalence and viremia in non-migrants living in households with in- or out-migration events. We compared HIV outcomes in non-migrating persons in households with and without migration events using data from the Rakai Community Cohort Study (RCCS), an open population-based cohort in Uganda. Methods: We analyzed RCCS survey data from one survey round collected between August 2016 and May 2018 from non-migrating participants aged 15-49. Migrant households were classified as those reporting ≥1 member moving into or out of the household since the prior survey. A validated rapid test algorithm determined HIV serostatus. HIV viremia was defined as >1,000 copies/mL. Modified Poisson regression was used to estimate associations between household migration and HIV outcomes, with results reported as adjusted prevalence ratios (adjPR) with 95% confidence intervals (95%CI). Analyses were stratified by gender, direction of migration (into/out of the household), and relationship between non-migrants and migrants (e.g., spouse). Results: There were 14,599 non-migrants (7,654, 52% women) identified in 9,299 households. 4,415 (30%) lived in a household with ≥1 recent migrant; of these, 972(22%) had migrant spouses, 1,102(25%) migrant children, and 875(20%) migrant siblings. Overall, HIV prevalence and viremia did not differ between non-migrants in migrant and non-migrant households. However, in stratified analyses, non-migrant women with migrant spouses were significantly more likely to be HIV seropositive compared to non-migrant women with non-migrant spouses (adjPR:1.44, 95%CI:1.21-1.71). Conversely, non-migrant mothers living with HIV who had migrant children were less likely to be viremic (adjPR:0.34, 95%CI:0.13-0.86). Among non-migrant men living with HIV, spousal migration was associated with a non-significant increased risk of viremia (adjPR:1.37, 95%CI:0.94-1.99). Associations did not typically differ for migration into or out of the household. Conclusions: Household migration was associated with HIV outcomes for certain non-migrants, suggesting that the context of household migration influences the observed association with HIV outcomes. In particular, non-migrating women with migrating spouses were more likely to have substantially higher HIV burden. Non-migrants with migrant spouses may benefit from additional support when accessing HIV services.

18.
BMJ Open ; 13(11): e073241, 2023 11 14.
Artículo en Inglés | MEDLINE | ID: mdl-37963696

RESUMEN

INTRODUCTION: Self-collected samples (SCS) for sexually transmitted infection (STI) testing have been shown to be feasible and acceptable in high-resource settings. However, few studies have assessed the acceptability of SCS for STI testing in a general population in low-resource settings. This study explored the acceptability of SCS among adults in south-central Uganda. METHODS: Nested within the Rakai Community Cohort Study, we conducted semistructured interviews with 36 adults who SCS for STI testing. We analysed the data using an adapted version of the Framework Method. RESULTS: Overall, SCS was acceptable to both male and female participants, regardless of whether they reported recent STI symptoms. Perceived advantages of SCS over provider-collection included increased privacy and confidentiality, gentleness and efficiency. Disadvantages included the lack of provider involvement, fear of self-harm and the perception that SCS was unhygienic. Most participants preferred provider-collected samples to SCS. Nevertheless, almost all said they would recommend SCS and would do it again in the future. CONCLUSION: SCS are acceptable among adults in this low-resource setting and could be offered as an additional option to expand STI diagnostic services.


Asunto(s)
Infecciones por VIH , Enfermedades de Transmisión Sexual , Humanos , Masculino , Adulto , Femenino , Uganda/epidemiología , Estudios de Cohortes , Enfermedades de Transmisión Sexual/diagnóstico , Enfermedades de Transmisión Sexual/epidemiología , Conducta Sexual , Investigación Cualitativa , Infecciones por VIH/epidemiología
19.
Soc Sci Med ; 339: 116386, 2023 12.
Artículo en Inglés | MEDLINE | ID: mdl-37984182

RESUMEN

BACKGROUND: There is limited study of persons deemed "harder to reach" by HIV treatment services, including those discontinuing or never initiating antiretroviral therapy (ART). We conducted narrative research in southern Uganda with virologically unsuppressed persons identified through population-based sampling to discern longitudinal patterns in HIV service engagement and identify factors shaping treatment persistence. METHODS: In mid-2022, we sampled adult participants with high-level HIV viremia (≥1000 RNA copies/mL) from the prospective, population-based Rakai Community Cohort Study. Using life history calendars, we conducted initial and follow-up in-depth interviews to elicit oral histories of participants' journeys in HIV care, from diagnosis to the present. We then used thematic trajectory analysis to identify discrete archetypes of HIV treatment engagement by "re-storying" participant narratives and visualizing HIV treatment timelines derived from interviews and abstracted clinical data. RESULTS: Thirty-eight participants (median age: 34 years, 68% men) completed 75 interviews. We identified six HIV care engagement archetypes from narrative timelines: (1) delayed ART initiation, (2) early treatment discontinuation, (3) treatment cycling, (4) prolonged treatment interruption, (5) transfer-related care disruption, and (6) episodic viremia. Patterns of service (dis)engagement were highly gendered, occurred in the presence and absence of optimal ART adherence, and were shaped by various factors emerging at different time points, including: denial of HIV serostatus and disclosure concerns; worsening HIV-related symptoms; psychological distress and depression; social support; intimate partner violence; ART side effects; accessibility constraints during periods of mobility; incarceration; and inflexible ART dispensing regulations. CONCLUSIONS: Identified trajectories uncovered heterogeneities in both the timing and drivers of ART (re-)initiation and (dis)continuity, demonstrating the distinct characteristics and needs of people with different patterns of HIV treatment engagement throughout the life course. Enhanced mental health service provision, expanded eligibility for differentiated service delivery models, and streamlined facility switching processes may facilitate timely (re-)engagement in HIV services.


Asunto(s)
Fármacos Anti-VIH , Infecciones por VIH , Adulto , Masculino , Humanos , Femenino , Estudios de Cohortes , Estudios Prospectivos , Uganda/epidemiología , Viremia/tratamiento farmacológico , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/epidemiología , Infecciones por VIH/psicología , Fármacos Anti-VIH/uso terapéutico
20.
BMC Womens Health ; 23(1): 633, 2023 11 27.
Artículo en Inglés | MEDLINE | ID: mdl-38012615

RESUMEN

BACKGROUND: Majority of patients with cervical cancer in the low- and middle-income countries experience long diagnostic and pre-treatment intervals. This study sought to determine the factors associated with the diagnostic and pre-treatment intervals among patients with cervical cancer. METHODS: This was a cross-sectional study conducted at the Uganda Cancer Institute (UCI) during October 2019 to January 2020. Patients aged ≥ 18 years with histological diagnosis of cervical cancer were consecutively sampled. Data were collected using a pre-tested semi-structured questionnaire and a data abstraction form. Diagnostic intervals, defined as the time between first visit of a patient to a primary healthcare provider to time of getting confirmed diagnosis, of ≤ 3 months was defined as early & >3 months as late. Pre-treatment intervals, which is the time from histological diagnosis to starting cancer chemo-radiotherapy of ≤ 1 month was defined as early and > 1 month as late. Data were analysed using STATA version 14.0. We used modified Poisson regression models with robust variance to determine socio-demographic and clinical factors associated with the intervals. RESULTS: The mean age of the participants was 50.0 ± 11.7 years. The median diagnostic and pre-treatment intervals were 3.1 (IQR: 1.4-8.2) months and 2.4 (IQR: 1.2-4.1) months respectively. Half of the participants, 49.6% (200/403) were diagnosed early; one in 5 patients, 20.1% (81/403) promptly (within one month) initiated cancer chemo-radiotherapy. Participants more likely to be diagnosed early included those referred from district hospitals (level 5) (aPR = 2.29; 95%CI: 1.60-3.26) and with squamous cell carcinomas (aPR = 1.55; 95%CI: 1.07-2.23). Participants more likely to be diagnosed late included those who first discussed their symptoms with relatives, (aPR = 0.77; 95%CI: (0.60-0.98), had > 2 pre-referral visits (aPR = 0.75; 95%CI (0.61-0.92), and had advanced stage (stages 3 or 4) (aPR = 0.68; 95%CI: 0.55-0.85). Participants more likely to initiate cancer chemo-radiotherapy early included older patients (≥ 60 years) (aPR = 2.44; 95%CI: 1.18-5.03). Patients likely to start treatment late were those who had ≥2 pre-referral visits  (aPR = 0.63; 95%CI: 0.41-0.98) and those that took 3 - 6 months with symptoms before seeking healthcare (aPR = 0.52;95%CI: 0.29 - 0.95). CONCLUSION: Interventions to promote prompt health-seeking and early diagnosis of cervical cancer need to target primary healthcare facilities and aim to enhance capacity of primary healthcare professionals to promptly initiate diagnostic investigations. Patients aged < 60 years require targeted interventions to promote prompt initiation of chemo-radiation therapy.


Asunto(s)
Neoplasias del Cuello Uterino , Femenino , Humanos , Adulto , Persona de Mediana Edad , Neoplasias del Cuello Uterino/diagnóstico , Neoplasias del Cuello Uterino/terapia , Estudios Transversales , Uganda , Encuestas y Cuestionarios , Derivación y Consulta
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