RESUMO
BACKGROUND: Human immunodeficiency virus (HIV) prevalence among men who have sex with men (MSM) is thought to be high in Jamaica. The objective of this study was to estimate HIV prevalence and identify risk factors in order to improve prevention approaches. METHODS: With the help of influential MSM, an experienced research nurse approached MSM in four parishes to participate in a cross-sectional survey in 2007. Men who have sex with men were interviewed and blood taken for HIV and syphilis tests, and urine taken for gonorrhoea, chlamydia and trichomonas testing using transcription-mediated amplification assays. A structured questionnaire was administered by the nurse. RESULTS: One third (65 of 201; 32%, 95% Confidence Interval (CI) 25.2, 47.9) of MSM were HIV positive. Prevalence of other sexually transmitted infections (STI) was: chlamydia 11%, syphilis 6%, gonorrhoea 3.5% and trichomonas 0%. One third (34%) of MSM identified themselves as being homosexual, 64% as bisexual and 1.5% as heterosexual. HIV positive MSM were significantly more likely to have ever been told by a doctor that they had an STI (48% vs 27%, OR 2.48 CI 1.21, 5.04, p = 0.01) and to be the receptive sexual partner at last sex (41% vs 23%, OR 2.41 CI 1.21, 4.71, p = 0.008). Men who have sex with men who were of low socio-economic status, ever homeless and victims of physical violence were twice as likely to be HIV positive. The majority (60%) of HIV positive MSM had not disclosed their status to their partner and over 50% were not comfortable disclosing their status to anyone. CONCLUSIONS: The high HIV prevalence among MSM is an important factor driving the HIV epidemic in Jamaica. More effective ways need to be found to reduce the high prevalence of HIV among MSM including measures to reduce their social vulnerability, combat stigma and discrimination and empower them to practice safe sex.
Assuntos
Bissexualidade/estatística & dados numéricos , Infecções por HIV/epidemiologia , Homossexualidade Masculina/estatística & dados numéricos , Adulto , Infecções por Chlamydia/epidemiologia , Vítimas de Crime/estatística & dados numéricos , Estudos Transversais , Gonorreia/epidemiologia , Pessoas Mal Alojadas/estatística & dados numéricos , Humanos , Jamaica/epidemiologia , Masculino , Prevalência , Fatores de Risco , Assunção de Riscos , Infecções Sexualmente Transmissíveis/epidemiologia , Fatores Socioeconômicos , Sífilis/epidemiologia , Tricomoníase/epidemiologia , Sexo sem Proteção , Populações Vulneráveis , Adulto JovemRESUMO
BACKGROUND: Human immunodeficiency virus (HIV) prevalence among men who have sex with men (MSM) is thought to be high in Jamaica. The objective of this study was to estimate HIV prevalence and identify risk factors in order to improve prevention approaches. METHODS: With the help of influential MSM, an experienced research nurse approached MSM in four parishes to participate in a cross-sectional survey in 2007. Men who have sex with men were interviewed and blood taken for HIV and syphilis tests, and urine taken for gonorrhoea, chlamydia and trichomonas testing using transcription-mediated amplification assays. A structured questionnaire was administered by the nurse. RESULTS: One third (65 of 201; 32%, 95% Confidence Interval (CI) 25.2, 47.9) of MSM were HIV positive. Prevalence of other sexually transmitted infections (STI) was: chlamydia 11%, syphilis 6%, gonorrhoea 3.5% and trichomonas 0%. One third (34%) of MSM identified themselves as being homosexual, 64% as bisexual and 1.5% as heterosexual. HIV positive MSM were significantly more likely to have ever been told by a doctor that they had an STI (48% vs 27%, OR 2.48 CI 1.21, 5.04, p = 0.01) and to be the receptive sexual partner at last sex (41% vs 23%, OR 2.41 CI 1.21, 4.71, p = 0.008). Men who have sex with men who were of low socio-economic status, ever homeless and victims of physical violence were twice as likely to be HIV positive. The majority (60%) of HIV positive MSM had not disclosed their status to their partner and over 50% were not comfortable disclosing their status to anyone. CONCLUSIONS: The high HIV prevalence among MSM is an important factor driving the HIV epidemic in Jamaica. More effective ways need to be found to reduce the high prevalence of HIV among MSM including measures to reduce their social vulnerability, combat stigma and discrimination and empower them to practice safe sex.
ANTECEDENTES: Se piensa que la prevalencia del virus de inmunodeficiencia humana (VIH) entre hombres que tienen sexo con hombres (HSH) es alta en Jamaica. El objetivo de este estudio fue estimar la prevalencia del VIH e identificar los factores de riesgo a fin de mejorar las estrategias de prevención. MÉTODOS: Con la ayuda de HSH influyentes, una enfermera investigadora experimentada abordó a HSH en cuatro distritos, recabando su participación en una encuesta transversal en 2007. Se entrevistó a hombres que tienen sexo con hombres, y se tomaron muestras de sangre para realizar pruebas de VIH. Asimismo se tomaron muestras de orina para hacer pruebas de gonorrea, clamidia y trichomonas, usando ensayos de amplificación mediada por transcripción. Un cuestionario estructurado fue aplicado por la enfermera. RESULTADOS: Un tercio (65 de 201; 32%, 95% intervalo de confianza (IC) 25.2, 47.9) de los HSH fueron VIH positivos. La prevalencia de otras infecciones de transmisión sexual (ITS) fue como sigue: clamidia 11%, sífilis 6%, gonorrea 3.5%, y trichomonas 0%. Un tercio (34%) de los HSH se identificaron como homosexuales, 64% como bisexuales, y un 1.5% como heterosexuales. Los HSH que resultaron VIH positivos presentaron una probabilidad significativamente mayor de haber recibido un diagnóstico de ITS por parte de un médico (48% vs 27%, OR 2.48 IC 1.21, 5.04, p = 0,01), y de haber sido la pareja sexual receptora en el último intercambio sexual (41% frente a 23%, OR 2.41 IC 1.21, 4.71, p = 0.008). Los hombres que tuvieron sexo con hombres tenían un bajo nivel socio-económico, y alguna vez estuvieron sin hogar, fueron víctimas de violencia física, y tenían una probabilidad dos veces más alta de ser VIH positivos. La mayoría (60%) de los MSM VIH positivos no habían revelado su condición a sus parejas, y más del 50% no se sentían cómodos revelando su estatus a otras personas. CONCLUSIONES: La alta prevalencia de VIH entre HSH es un factor importante en el desarrollo de la epidemia de VIH en Jamaica. Se necesita hallar formas más eficaces de reducir la alta prevalencia de VIH entre los HSH, incluidas las medidas para reducir su vulnerabilidad social, combatir el estigma y la discriminación, y capacitarles para practicar sexo seguro.
Assuntos
Humanos , Masculino , Adulto , Adulto Jovem , Infecções por HIV/epidemiologia , Homossexualidade Masculina/estatística & dados numéricos , Fatores Socioeconômicos , Tricomoníase/epidemiologia , Pessoas Mal Alojadas/estatística & dados numéricos , Infecções por Chlamydia/epidemiologia , Gonorreia/epidemiologia , Sífilis/epidemiologia , Infecções Sexualmente Transmissíveis/epidemiologia , Prevalência , Estudos Transversais , Fatores de Risco , Vítimas de Crime/estatística & dados numéricos , Populações Vulneráveis , Sexo sem Proteção , Jamaica/epidemiologiaRESUMO
CONTEXT: A high prevalence of obesity has recently been reported in postmenopausal women with low trauma fracture, suggesting that higher bone mineral density (BMD) in obese individuals may not be protective against fracture. OBJECTIVE: The aim of this study was to compare BMD and other risk factors for nonvertebral fracture in 1377 obese postmenopausal women. DESIGN: Characteristics of obese women with and without incident nonvertebral fracture were investigated among the prospective cohort in the Study of Osteoporotic Fractures. SETTING: The Study of Osteoporotic Fractures is a multicenter study of 9704 women (>99% Caucasian) aged 65 yr and over who were recruited between September 1986 and October 1988 from population-based listings at four U.S. clinical centers. MAIN OUTCOME MEASURE: The main outcome measure was nonvertebral fracture. RESULTS: BMD T-scores in the spine, femoral neck, and total hip were significantly lower in obese women who experienced fractures than in obese women without fracture: mean differences, -0.56 [95% confidence interval (CI) = -0.73 to -0.39], -0.46 (95% CI = -0.57 to -0.36), and -0.51 (95% CI = -0.62 to -0.39), respectively (P < 0.0001 for all). A previous history of fracture [odds ratio = 1.69 (95% CI = 1.33-2.14); P < 0.0001] and femoral neck BMD [1.62 (95% CI = 1.42-1.85) per sd decrease in BMD; P < 0.0001] were independently associated with incident nonvertebral fracture. CONCLUSIONS: Obese postmenopausal women who sustain nonvertebral fractures have significantly lower BMD on average than obese women without fracture and are more likely to have a past history of fracture. Fractures in obese postmenopausal women thus exhibit some characteristics of fragility fractures.
Assuntos
Fraturas do Quadril/epidemiologia , Obesidade/epidemiologia , Osteoporose/epidemiologia , Traumatismos do Punho/epidemiologia , Idoso , Densidade Óssea , Feminino , Humanos , Incidência , Modelos Logísticos , Prevalência , Fatores de Risco , Estados Unidos/epidemiologiaRESUMO
SUMMARY: The prevalence of radiographically ascertained vertebral fractures in a random sample of 413 in Mexican men is 9.7% (95% CI 6.85-12.55). Increase of vertebral fracture rises with age from 2.0% in the youngest group (50-59 years) to 21.4% in the oldest group (80 years and over). INTRODUCTION: This is the first population-based study of vertebral fractures in Mexican men using a standardized methodology reported in other studies. METHODS: The presence of radiographic vertebral fractures increases with age. This same pattern was found in Mexican women with steady age increments, but the higher prevalence of fractures in women starts at age 70, whereas in men, the higher prevalence starts a decade later (80 years and over). RESULTS: The standardized prevalence per 1,000 men 50 years and over in the Mexican population for the year 2005 is 65.8 (95% CI 29.9-105.5), and it is 68.6 (95% CI 32.2-108.7) in the US population for the year 2000.
Assuntos
Fraturas da Coluna Vertebral/epidemiologia , Distribuição por Idade , Idoso , Idoso de 80 Anos ou mais , Índice de Massa Corporal , Humanos , Masculino , México/epidemiologia , Pessoa de Meia-Idade , Prevalência , Radiografia , Fatores de Risco , Fraturas da Coluna Vertebral/diagnóstico por imagem , Fraturas da Coluna Vertebral/etiologiaRESUMO
UNLABELLED: In the first population-based study of vertebral fractures in Latin America, we found a 11.18 (95% CI 9.23-13.4) prevalence of radiographically ascertained vertebral fractures in a random sample of 1,922 women from cities within five different countries. These figures are similar to findings from studies in Beijing, China, some regions of Europe, and slightly lower than those found in the USA using the same standardized methodology. INTRODUCTION: We report the first study of radiographic vertebral fractures in Latin America. METHODS: An age-stratified random sample of 1,922 women aged 50 years and older from Argentina, Brazil, Colombia, Mexico, and Puerto Rico were included. In all cases a standardized questionnaire and lateral X-rays of the lumbar and thoracic spine were obtained after informed consent. RESULTS: A standardized prevalence of 11.18 (95% CI 9.23-13.4) was found. The prevalence was similar in all five countries, increasing from 6.9% (95% CI 4.6-9.1) in women aged 50-59 years to 27.8% (95% CI 23.1-32.4) in those 80 years and older (p for trend < 0.001). Among different risk factors, self-reported height loss OR = 1.63 (95% CI: 1.18-2.25), and previous history of fracture OR = 1.52 (95% CI: 1.14-2.03) were significantly (p < 0.003 and p < 0.04 respectably) associated with the presence of radiographic vertebral fractures in the multivariate analysis. In the bivariate analyses HRT was associated with a 35% lower risk OR = 0.65 (95% CI: 0.46-0.93) and physical activity with a 27% lower risk of having a vertebral fracture OR = 0.73 (95% CI: 0.55-0.98), but were not statistically significant in multivariate analyses CONCLUSION: We conclude that radiographically ascertained vertebral fractures are common in Latin America. Health authorities in the region should be aware and consider implementing measures to prevent vertebral fractures.
Assuntos
Vértebras Lombares/lesões , Osteoporose Pós-Menopausa/epidemiologia , Fraturas da Coluna Vertebral/epidemiologia , Vértebras Torácicas/lesões , Idoso , Idoso de 80 Anos ou mais , Argentina/epidemiologia , Estatura , Brasil/epidemiologia , Colômbia/epidemiologia , Terapia de Reposição de Estrogênios , Exercício Físico , Feminino , Humanos , Vértebras Lombares/diagnóstico por imagem , México/epidemiologia , Pessoa de Meia-Idade , Análise Multivariada , Osteoporose Pós-Menopausa/complicações , Osteoporose Pós-Menopausa/diagnóstico por imagem , Prevalência , Porto Rico/epidemiologia , Radiografia , Fraturas da Coluna Vertebral/complicações , Fraturas da Coluna Vertebral/diagnóstico por imagem , Vértebras Torácicas/diagnóstico por imagemRESUMO
OBJECTIVE: To describe the design, methods and baseline findings of a multi-level prevention intervention to increase consistent condom use among persons at public social sites in Kingston, Jamaica, who have new or concurrent sexual partnerships. METHODS: A two-arm randomized controlled trial (RCT) of 147 sites where persons meet new sex partners. Sites were identified by community informants as places where people meet new sexual partners, which include bars, street locations, bus stops, malls and others. Sites were sorted into 50 clusters based on geographic proximity and type of site and randomized to receive a multi-level site-based intervention or not. Intervention components include on-site HIV testing, condom promotion and peer education. Effectiveness of the intervention will be measured by comparing the proportion of persons with new or multiple partners in the past year who report recent inconsistent condom use at intervention vs. control sites. RESULTS: Baseline surveys were conducted at 66 intervention (711 men, 845 women) and 65 control sites (654 men, 738 women). Characteristics of intervention and control sites as well as the characteristics of patrons at these sites were similar. The outcome variable was balanced with approximately 30% of men and 25% of women at intervention and control sites reporting a new partner or more than one partner in the past year and recent inconsistent condom use. CONCLUSIONS: The baseline findings confirm that the population is an appropriate target group for HIV prevention and that randomization will provide the means to estimate programme effectiveness.
Assuntos
Preservativos/estatística & dados numéricos , Infecções por HIV/prevenção & controle , Promoção da Saúde/métodos , Sexo Seguro , Adolescente , Adulto , Feminino , Infecções por HIV/epidemiologia , Infecções por HIV/transmissão , Humanos , Incidência , Jamaica/epidemiologia , Masculino , Pessoa de Meia-Idade , Avaliação de Programas e Projetos de Saúde , Projetos de Pesquisa , Comportamento SexualRESUMO
The Health Watch clinic at Women's College Hospital, Toronto, provides screening and preventive services primarily to women in Ontario. These services can be seen as a duplication of those that can be provided by family physicians. Nevertheless, some Ontario women continue to bypass their family physicians and attend this clinic. This study was done to understand the decision-making processes women go through in deciding to bypass their family physician when seeking preventive health services and to understand which features of this model of preventive care are so attractive. Seventeen women attending the Health Watch Clinic agreed to participate. In-depth interviews were carried out until saturation was achieved. The interviews were taped and later transcribed. The data were analyzed using qualitative methods, specifically, grounded in theory. Emergent themes were extracted while listening to tapes and reading transcripts. Themes were discussed between researchers and an agreement was arrived at. These themes were relayed back to participants to confirm interpretation. The emerging themes suggest that women bypass the family physician for several reasons, including: "Women negative" experiences, the inherent qualities of the woman, such as her locus of control, normative influences, and perceived positive aspects of the Health Watch Clinic and the Women's College Hospital. The findings suggest that women who bypass their family doctor have generally had a negative experience with the traditional healthcare system. The women in this study were highly educated with high internal motivation and tended to have extensive family and friend support and advice regarding health matters. (AU)