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1.
Contemp Clin Trials ; 145: 107662, 2024 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-39142511

RESUMEN

BACKGROUND: Mitigating attrition is a key component to reduce selection bias in longitudinal randomized controlled trials (RCTs). Few studies of electronic nicotine delivery systems (ENDS) allow for the examination of long-term retention. This analysis explores the relationship between attrition, baseline measures, and condition assigned for a RCT involving ENDS differing in nicotine delivery over a 24-week intervention period. METHODS: Participants (N = 520) who smoked ≥10 cigarettes per day [CPD] for ≥1 year and reported interest in reducing but not quitting were randomized to 1 of 4 conditions: an ENDS containing 0, 8, or 36 mg/ml liquid nicotine (administered double-blind) or a cigarette-shaped plastic tube. Cox proportional hazards regression models were fit to examine attrition over time and predictors of attrition including baseline characteristics and condition. A stepwise approach was used to determine the final model; alpha was set at 0.05. RESULTS: Attrition did not differ significantly by condition (223/520), and most (69%) were lost-to-follow-up. Only age, education level, and household income were significantly predictive of attrition. For every additional year of age, attrition risk fell by 3%. Holding a bachelor's degree or higher was associated with reduced attrition risk. Those with the lowest income (<$10 K) were more likely to be withdrawn compared to those earning $10 K-39 K, and those with the highest income ($100 K+) were more likely to be withdrawn compared with the latter bracket and those earning $70-99 K. CONCLUSION: ENDS nicotine content did not drive differential attrition in this trial, and targeted retention efforts are needed for specific subgroups. Trial Registration #: NCT02342795.


Asunto(s)
Fumar Cigarrillos , Sistemas Electrónicos de Liberación de Nicotina , Nicotina , Humanos , Masculino , Femenino , Adulto , Persona de Mediana Edad , Método Doble Ciego , Nicotina/administración & dosificación , Fumar Cigarrillos/epidemiología , Reducción del Consumo de Tabaco/métodos , Cese del Hábito de Fumar/métodos , Modelos de Riesgos Proporcionales , Factores de Edad , Perdida de Seguimiento , Escolaridad , Adulto Joven , Renta
2.
Nicotine Tob Res ; 26(Supplement_2): S121-S132, 2024 May 31.
Artículo en Inglés | MEDLINE | ID: mdl-38817032

RESUMEN

INTRODUCTION: The Food and Drug Administration (FDA) has proposed banning cigarettes and cigars with characterizing flavors-products used disproportionately by African American/black (AA/B) individuals. Little is known about how AA/B individuals who smoke menthol cigarettes will respond to flavor bans or how to amplify the intended benefits. This study explored predictors of quit intentions following a hypothetical flavor ban and further probed anticipated ban-related responses. AIMS AND METHODS: We recruited 213 AA/B individuals who use menthol cigarettes from Richmond, VA (September 2021-August 2022) for a mixed-methods study. Participants rated seven motivations for quitting and six barriers to quitting (Not a motivation or challenge[1]-Major motivation or challenge[4]), then reported how likely they were to quit smoking if characterizing flavors were banned in cigarettes and cigars. A subsample of 31 participants completed semi-structured interviews to further explore reactions to flavor restriction policies. RESULTS: Multivariable linear regressions suggested that participants who were more motivated to quit smoking because of "information about health hazards" and the "cost of cigarettes" reported higher quit intentions following a hypothetical menthol ban (p < .05). Additionally, those with cessation-related weight concerns reported lower post-ban quit intentions (p < .05). Interview themes highlighted smoking for stress reduction, harm/addiction perceptions of flavored tobacco products, trusted sources of tobacco-related information (including testimonials from people who formerly smoked), potential ban responses, and varying experiences with cessation strategies. CONCLUSIONS: Culturally specific cessation strategies that emphasize the health-related benefits of quitting, particularly those featuring the experiences of people who formerly smoked, may help AA/B individuals who smoke menthol cigarettes quit following a menthol ban. IMPLICATIONS: For the FDA's proposed bans on characterizing flavors in cigarettes and cigars to advance racial health equity, they must maximize cessation among African American/black (AA/B) individuals who use menthol cigarettes. This work suggests information on the health hazards and costs of smoking, as well as concerns over gaining weight, were predictors of quit intentions in a hypothetical flavor ban. Qualitative data suggest messaging highlighting the experiences of individuals who successfully quit may constitute an effective communication strategy. These insights can be used in the development of culturally specific cessation strategies for AA/B individuals who smoke menthol cigarettes.


Asunto(s)
Negro o Afroamericano , Aromatizantes , Intención , Mentol , Motivación , Cese del Hábito de Fumar , Productos de Tabaco , Humanos , Cese del Hábito de Fumar/psicología , Cese del Hábito de Fumar/métodos , Femenino , Masculino , Negro o Afroamericano/psicología , Negro o Afroamericano/estadística & datos numéricos , Adulto , Persona de Mediana Edad , Estados Unidos , Adulto Joven
3.
Exp Clin Psychopharmacol ; 32(4): 465-474, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-38358733

RESUMEN

Previous work has aimed to disentangle the acute effects of nicotine and smoking on appetite with mixed findings. Electronic nicotine delivery systems (ENDS) have yet to be examined in this regard despite evidence of use for weight control. The present study tested the influence of an ENDS on acute energy intake and associated subjective effects. Participants (n = 34; 18-65 years) with current ENDS use completed two randomly ordered clinical lab sessions after overnight abstinence from tobacco/nicotine/food/drinks (other than water). Sessions differed by the product administered over 20 min: active (20 puffs of a JUUL ENDS device; 5% nicotine tobacco-flavored pod) or control (access to an uncharged JUUL with an empty pod). About 40 min after product administration, participants were provided an ad lib buffet-style meal with 21 food/drink items. Subjective ratings were assessed at baseline, after product use, and before/after the meal. Energy intake (kcal) was calculated using pre-post buffet item weights. Repeated measures analyses of variance and pairwise comparisons were used to detect differences by condition and time (α < .05). Mean ± standard error of the mean energy intake did not differ significantly between active (1011.9 ± 98.8 kcal) and control (939.8 ± 88.4 kcal; p = .108) conditions. Nicotine abstinence symptoms significantly decreased after the active condition, while satiety significantly increased. Following the control condition, satiety remained constant while hunger significantly increased relative to baseline. Findings indicate that acute ENDS use did not significantly impact energy intake, but there was an ENDS-associated subjective increase in satiety and relative decrease in hunger. Results support further investigation of ENDS on appetite. (PsycInfo Database Record (c) 2024 APA, all rights reserved).


Asunto(s)
Sistemas Electrónicos de Liberación de Nicotina , Ingestión de Energía , Nicotina , Humanos , Adulto , Masculino , Femenino , Adulto Joven , Adolescente , Persona de Mediana Edad , Nicotina/administración & dosificación , Apetito/efectos de los fármacos , Anciano , Hambre/efectos de los fármacos
4.
J Coll Physicians Surg Pak ; 33(1): 37-40, 2023 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-36597233

RESUMEN

OBJECTIVE: To determine the safety and outcomes of trans-abdominal chorionic villus sampling technique. STUDY DESIGN: Observational study. PLACE AND DURATION OF STUDY: Departments of Obstetrics and Gynaecology, PNS Shifa Karachi, Pak-Emirates Military Hospital Rawalpindi and CMH Lahore, from 2005-2020.   Methodology: A total of 1530 consecutive chorionic villus samplings (CVS) were performed on pregnant females between 10-20 weeks of gestation using the transabdominal approach. Patients were subjected to integrated, stepwise sequential screening. Analysis of data was based on demographic features, indications for sampling, gestational age, attempts of CVS, needle aspiration time, assessment, placental location, sample yield, complications, pain estimation by visual analogue scale (VAS), CVS culture results and pregnancy outcomes. RESULTS: The most common indication for CVS was couple having thalassemia traits and history of having a thalassemia major child previously (55.2%). Pain was the most common complication (64.1%). Procedure-related pregnancy loss (considered to be till 20 weeks of gestation) was observed in two cases (0.1%) only. The most common abnormal karyotype was found to be ß-Thalassemia trait (23.6%) followed by ß-Thalassemia major (22.1%) and Trisomy 21(16.8%). No abnormality was detected in 33.5% of the cases. Five hundred and eighty-nine (38.4%) interruptions of pregnancies were done on the basis of CVS results. CONCLUSION: CVS is a safe and useful technique for sampling in prenatal diagnosis of genetic disorders, markedly affecting the management. KEY WORDS: Chorionic villus sampling, Pre-natal diagnosis, Karyotype.


Asunto(s)
Muestra de la Vellosidad Coriónica , Talasemia beta , Niño , Embarazo , Humanos , Femenino , Muestra de la Vellosidad Coriónica/efectos adversos , Muestra de la Vellosidad Coriónica/métodos , Talasemia beta/diagnóstico , Placenta , Pakistán/epidemiología , Dolor
5.
Inf Syst Front ; 24(4): 1081-1105, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-36504756

RESUMEN

COVID-19 restrictions significantly affected SMEs, which have faced many challenges to their sustainability within this fragile new environment. This study proposes a holistic framework of sustainable performance by interrelating factors showing robust associations to produce this effect' for achieving sustainable performance in SMEs, through integrating the Technology Organisation Environment (TOE) and Resource Based View (RBV) models, to test how sustainable green practices can process the TOE factors when affecting sustainable performance. The research focuses on SMEs with worldwide employees and involves data collected from a range of different employees belonging to four different managerial levels. The process incorporated the analysis of 669 questionnaires to test the proposed hypotheses using structural equation modeling. Findings suggest that, together, TOE factors represent crucial inputs for green practices such as green training, green performance appraisal, that, in turn, mean critical processes lead to sustainable performance (output). Additionally, the findings should also inspire SMEs to focus even more effort on internal technological and organisational factors and to encourage an eco-friendly culture that would demand stakeholders adopt a more positive environmental stance.

6.
J Coll Physicians Surg Pak ; 29(8): 768-770, 2019 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-31358101

RESUMEN

OBJECTIVE: To evaluate the rising rate of caesarean section (CS) and its contributing factors at a tertiary care hospital. STUDY DESIGN: Clinical audit. PLACE AND DURATION OF STUDY: Obstetrics and Gynecology Department, Pak Emirates Military Hospital (PEMH), Rawalpindi, from January to December 2017. METHODOLOGY: All caesarean sections were classified according to modified Robson criteria into twelve groups, after modification. The size of each group, rate of caesarean section and contribution of each group was calculated. A re-audit was carried out after 6 months under the same protocol thus completing the audit cycle. RESULTS: CS rate was 54% (n=3878). The maximum contribution 27.42% (n=1976) to total CS rate was made by Group 5, 12.07% (n=870) by group 12 and 7.34% (n=531) by group 2. Re-audit showed a reduced CS rate of 38.2% (n=1342) with contribution by Group 5 reduced to 16.05% (n=563), Group 12 to 7.47% (n=262) and Group 2 reduced to 5.7% (n=202), respectively. CONCLUSION: Modified Robson Criteria is an effective auditing tool which identifies the exact areas where efforts and strategies are required to reduce the overall CS rate.


Asunto(s)
Cesárea/estadística & datos numéricos , Auditoría Clínica , Adulto , Femenino , Humanos , Pakistán , Embarazo , Centros de Atención Terciaria
7.
J Ayub Med Coll Abbottabad ; 22(1): 17-21, 2010.
Artículo en Inglés | MEDLINE | ID: mdl-21409895

RESUMEN

BACKGROUND: Anaemia in pregnancy is a common clinical problem contributing to increased maternal and foetal morbidity. This study was carried out to determine frequency of iron, folate and cobalamin deficiency and associated risk factors in the anaemic pregnant females who reported first time during second and third trimester for antenatal check-up in the tertiary care hospital at Rawalpindi. METHODS: This case control study was carried out in a tertiary care hospital at Rawalpindi. Two hundred and fifty pregnant women (age: 19-43 years) consisting of 125 anaemic (Hb < 110 g/L) and 125 non-anaemic who reported first time at antenatal clinic were included. Data on socio-demographic characteristics, parity and dietary intake were collected. Complete blood counts were done. Serum ferritin, folate and cobalamin assays were performed by using DPC kits on Immulite-1000. RESULTS: The pregnant women were categorised having mild (Hb up to 54%), moderate (Hb up to 36%), or severe (Hb up to 10%) anaemia during antennal visit. They had significantly lower median (range) levels of haemoglobin 96 (40-110) g/L, ferritin 8 (3-142) microg/L, folate 15 (3-54) etamol/L and cobalamin 171 (111-629) etamolL than controls (p = < 0.01). Micronutrient analysis revealed secondary pregnancy related deficiency of Iron (57%), folate (20%). combined iron and folate (19%) and cobalamin (4%) in the female Among the risk factors, low income (OR: 7.69), multiparty (OR: 2.93), lack of iron/folate supplementation (OR 2.91) and inadequate dietary intakes (OR 2.51) were associated with anaemia. CONCLUSION: The pregnant anaemic women had iron (57%); folate (20%), followed by combined iron folate (19%) and cobalamin (4%) deficiency during first antenatal visit. Low income, multiparty, poor diet and lack of supplements are the main contributor in development of anaemia during pregnancy.


Asunto(s)
Anemia/epidemiología , Deficiencia de Ácido Fólico/epidemiología , Deficiencias de Hierro , Complicaciones Hematológicas del Embarazo/epidemiología , Deficiencia de Vitamina B 12/epidemiología , Adulto , Estudios de Casos y Controles , Femenino , Humanos , Pakistán/epidemiología , Embarazo , Factores de Riesgo
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