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1.
AIDS Behav ; 22(1): 212-223, 2018 01.
Artículo en Inglés | MEDLINE | ID: mdl-28741134

RESUMEN

This cluster randomised trial in KwaZulu-Natal South Africa, evaluated the implementation of a Feeding Buddies (FB) programme to improve exclusive breastfeeding (EBF) amongst human immunodeficiency virus infected mothers. Eight clinics were randomly allocated to intervention and control arms respectively. Pregnant women attending the prevention of mother-to-child transmission program and intending to EBF were enrolled: control (n = 326), intervention (n = 299). Intervention mothers selected FBs to support them and they were trained together (four sessions). Interviews of mothers occurred prenatally and at post-natal visits (day 3, weeks 6, 14 and 22). Breastfeeding results were analysed (Stata) as interval-censored time-to-event data, with up to four time intervals per mother. EBF rates at the final interview were similar for control and intervention groups: 44.68% (105/235) and 42.75% (109/255) respectively (p = 0.67). In Cox regression analysis better EBF rates were observed in mothers who received the appropriate training (p = 0.036), had a community care giver visit (p = 0.044), while controlling for other factors. Implementation realities reduced the potential effectiveness of the FBs.


Asunto(s)
Lactancia Materna , Infecciones por VIH/psicología , Transmisión Vertical de Enfermedad Infecciosa/prevención & control , Madres/psicología , Complicaciones Infecciosas del Embarazo/tratamiento farmacológico , Apoyo Social , Adolescente , Adulto , Lactancia Materna/psicología , Lactancia Materna/estadística & datos numéricos , Femenino , Humanos , Lactante , Recién Nacido , Intención , Madres/estadística & datos numéricos , Embarazo , Población Rural , Sudáfrica
2.
Harm Reduct J ; 14(1): 38, 2017 06 14.
Artículo en Inglés | MEDLINE | ID: mdl-28615077

RESUMEN

BACKGROUND: WHO, UNODC, and UNAIDS recommend a comprehensive package for prevention, treatment, and care of HIV among people who inject drugs (PWID). We describe the uptake of services and the cost of implementing a comprehensive package for HIV prevention, treatment, and care services in Delhi, India. METHODS: A cohort of 3774 PWID were enrolled for a prospective HIV incidence study and provided the comprehensive package: HIV and hepatitis testing and counseling, hepatitis B (HB) vaccination, syndromic management of sexually transmitted infections, clean needles-syringes, condoms, abscess care, and education. Supplementary services comprising tea and snacks, bathing facilities, and medical consultations were also provided. PWID were referred to government services for antiretroviral therapy (ART), TB care, opioid substitution therapy, and drug dependence treatment/rehabilitation. RESULTS: The project spent USD 1,067,629.88 over 36 months of project implementation: 1.7% on capital costs, 3.9% on participant recruitment, 26.7% for project management, 49.9% on provision of services, and 17.8% on supplementary services. Provision of HIV prevention and care services cost the project USD 140.41/PWID/year. 95.3% PWID were tested for HIV. Of the HIV-positive clients, only 17.8% registered for ART services after repeated follow-up. Reasons for not seeking ART services included not feeling sick, need for multiple visits to the clinic, and long waiting times. 61.8% of the PWID underwent HB testing. Of the 2106 PWID eligible for HB vaccination, 81% initiated the vaccination schedule, but only 29% completed all three doses, despite intensive follow-up by outreach workers. PWID took an average of 8 clean needles-syringes/PWID/year over the project duration, with a mid-project high of 16 needles-syringes/PWID/year. PWID continued to also procure needles from other sources, such as chemists. One hundred five PWID were referred to OST services and 267 for rehabilitation services. CONCLUSIONS: A comprehensive HIV prevention, treatment, and care package is challenging to implement. Extensive efforts are needed to ensure the uptake of and retention in services for PWID; peer educators and outreach workers are required on a continuous basis. Services need to be tailored to client needs, considering clinic timing and distance from hotspots. Programs may consider provision of ART services at selected drop-in centers to increase uptake.


Asunto(s)
Consumidores de Drogas , Infecciones por VIH/prevención & control , Abuso de Sustancias por Vía Intravenosa/complicaciones , Adulto , Terapia Antirretroviral Altamente Activa/economía , Estudios de Cohortes , Relaciones Comunidad-Institución , Condones/economía , Costos y Análisis de Costo , Femenino , Infecciones por VIH/economía , Infecciones por VIH/terapia , Reducción del Daño , Hepatitis B/prevención & control , Hepatitis C/prevención & control , Humanos , India , Masculino , Programas de Intercambio de Agujas/economía , Programas de Intercambio de Agujas/legislación & jurisprudencia , Tratamiento de Sustitución de Opiáceos/economía , Estudios Prospectivos , Factores Socioeconómicos , Abuso de Sustancias por Vía Intravenosa/rehabilitación
3.
BMC Public Health ; 15: 726, 2015 Jul 30.
Artículo en Inglés | MEDLINE | ID: mdl-26223866

RESUMEN

BACKGROUND: India has large PWID (persons who inject drugs) population estimated at 177,000. PWIDs are at high risk for HIV, Hepatitis B (HBV) and Hepatitis C (HCV) infections. We report the prevalence of HIV, HBV and HCV infections and correlates of HIV-HCV co-infection among male PWIDs in Delhi. METHODS: 3748 male PWIDs were recruited for a longitudinal HIV incidence study. Participants were tested for HBV and HCV infections at their first follow-up visit (FV1) using serum HBV-surface antigen, and HCV-antibody tests followed by HCV RNA PCR, respectively. All PWIDs who were HIV-negative at enrollment, were re-tested for HIV at FV1. Multinomial logistic regression was employed to identify predictors of HIV, HCV and HIV-HCV co-infection. RESULTS: Overall prevalence of HIV, HBV and HCV among 2,292 participants tested at FV1 was 25.9%, 9.7% and 53.7%, respectively. 6.4% of the participants had HIV mono-infection, 34.1% had HCV mono-infection, and 19.6% had HIV-HCV co-infection. 26% of HIV-positive participants without HCV were HBsAg positive. In the regression model, having practiced at least one risky injection in the past month (relative risk ratio (RRR): 1.38; 95% CI: 1.01-1.89) and not knowing his own HIV status (RRR: 1.65, 95% CI: 1.25-2.17) were independent predictors for HIV-HCV co-infection. Longer duration of drug injections was associated with a higher likelihood of HCV mono-infection (2-5 years RRR: 2.13; 6-10 years RRR: 2.74; ≥11 years RRR: 3.14) and HIV-HCV co-infection (2-5 years RRR: 5.14; 6-10 years RRR: 8.53; >11 years RRR: 8.03). Higher frequency of injection days/month was associated with a higher likelihood of HCV mono-infection (≤10 days/month RRR: 1.61; 11-20 days/month RRR: 3.15; 21-30 days/month RRR: 3.47) and HIV-HCV co-infections (≤10 days/month RRR: 2.26; 11-20 days/month RRR: 3.46; 21-30 days/month RRR: 4.83). CONCLUSIONS: We report a high prevalence of HIV, HCV and HIV-HCV co-infection among male PWIDs in Delhi. A tenth of the participants were HBsAg positive. Targeted Intervention programs should make HBV/HCV testing, prevention and care more accessible for PWIDs.


Asunto(s)
Coinfección/epidemiología , Infecciones por VIH/epidemiología , Hepatitis B/epidemiología , Hepatitis C/epidemiología , Abuso de Sustancias por Vía Intravenosa/epidemiología , Adulto , Femenino , Antígenos de Superficie de la Hepatitis B/sangre , Anticuerpos contra la Hepatitis C/sangre , Humanos , Incidencia , India/epidemiología , Masculino , Prevalencia , ARN Viral , Análisis de Regresión , Pruebas Serológicas , Factores de Tiempo
4.
Cult Health Sex ; 17(5): 623-37, 2015.
Artículo en Inglés | MEDLINE | ID: mdl-25439527

RESUMEN

Needle and syringe sharing is common among people who inject drugs and so is unprotected sex, which consequently puts their sex partners at risk of sexually transmitted infections (STIs) including HIV and other blood-borne infections, like hepatitis. We undertook a nested study with the regular female partners of men who inject drugs participating in a longitudinal HIV incidence study in Delhi, India. In-depth interviews were conducted with female partners of 32 men. The interviews aimed to gather focused and contextual knowledge of determinants of safe sex and reproductive health needs of these women. Information obtained through interviews was triangulated and linked to the baseline behavioural data of their partner (index men who injected drugs). The study findings illustrate that women in monogamous relationships have a low perception of STI- and HIV-related risk. Additionally, lack of awareness about hepatitis B and C is a cause of concern. Findings also suggest impact of male drug use on the fertility of the female partner. It is critical to empower regular female partners to build their self-risk assessment skills and self-efficacy to negotiate condom use. Future work must explore the role of drug abuse among men who inject drugs in predicting fertility and reproductive morbidity among their female partners.


Asunto(s)
Infecciones por VIH , Parejas Sexuales , Abuso de Sustancias por Vía Intravenosa , Poblaciones Vulnerables , Mujeres , Adulto , Femenino , Humanos , India , Estudios Longitudinales , Masculino , Persona de Mediana Edad , Compartición de Agujas , Investigación Cualitativa , Salud Reproductiva , Riesgo , Enfermedades de Transmisión Sexual , Adulto Joven
5.
AIDS Behav ; 17(7): 2479-89, 2013 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-23474594

RESUMEN

We report baseline findings from a longitudinal cohort study to examine HIV incidence, high-risk injection and sexual behaviors of 3,792 male injection drug users (IDUs) in Delhi. The majority (95.4 %) accepted HIV testing; HIV prevalence was 21.9 %. In multivariate analysis, belonging to states adjacent to Delhi (AOR: 1.23; 95 % CI: 1.07-1.52), earning INR 500-1,500 (AOR: 2.38; 95 % CI: 1.43-3.96); duration of drug use 2-5 years (AOR: 2.02; 95 % CI: 1.09-3.73), 6-10 years (AOR: 2.81; 95 % CI: 1.55-5.11), ≥11 years (AOR: 3.35; 95 % CI: 1.84-6.11); prior HIV testing (AOR: 1.60; 95 % CI: 1.35-1.91), self-reported risky-injection behavior (AOR: 1.60; 95 % CI: 1.33-1.92), and utilization of harm-reduction services (AOR: 1.32; 95 % CI: 1.11-1.58) were positively associated with HIV infection. Alcohol use ≤2 times/week (AOR: 0.67; 95 % CI: 0.55-0.82) or ≥3 times/week (AOR: 0.74; 95 % CI: 0.54-1.01), unit increase in age (AOR: 0.99; 95 % CI: 0.98-1.00), ≥7 years of schooling (AOR: 0.82; 95 % CI: 0.66-1.02) and unsafe sex with any female partner (AOR: 0.69; 95 % CI: 0.55-0.86) were negatively associated with HIV infection. HIV prevalence remains high among male IDUs in Delhi. HIV prevention programs should include comprehensive package of services for IDUs.


Asunto(s)
Serodiagnóstico del SIDA/estadística & datos numéricos , Países en Desarrollo , Infecciones por VIH/diagnóstico , Infecciones por VIH/epidemiología , Aceptación de la Atención de Salud/estadística & datos numéricos , Abuso de Sustancias por Vía Intravenosa/complicaciones , Abuso de Sustancias por Vía Intravenosa/epidemiología , Adulto , Estudios de Cohortes , Infecciones por VIH/prevención & control , Infecciones por VIH/transmisión , Reducción del Daño , Humanos , India , Estudios Longitudinales , Masculino , Factores de Riesgo , Sexo Inseguro/prevención & control , Sexo Inseguro/estadística & datos numéricos , Revisión de Utilización de Recursos/estadística & datos numéricos
6.
Harm Reduct J ; 10: 16, 2013 Sep 25.
Artículo en Inglés | MEDLINE | ID: mdl-24063610

RESUMEN

BACKGROUND: We utilized multiple recruitment approaches to recruit IDUs in a longitudinal cohort study to examine HIV incidence and behavior change pre- and post-introduction of comprehensive HIV prevention services. METHODS: IDUs were recruited through peer referral, targeted outreach by outreach workers (ORWs) and as walk-in clients at drop-in centers. Participants received monetary compensation for participation (USD 0.80). Participants were given recruitment coupons to recruit peers (regardless of recruitment method). For peer referral, participants received a food coupon, as secondary compensation, for each peer he/she successfully recruited. We report the profile of IDUs by recruitment method, based on the baseline behavioral survey and HIV test results. Cost per IDU recruited by recruitment method was also calculated. RESULTS: A total of 3,818 IDUs were recruited between May 2011 and October 2011. More than half of the study participants were recruited through targeted outreach (ORW: 53.6%; peer-referral: 26.3%; walk-ins: 20.1%). Of the participants who were given recruitment coupons, 92.7% recruited no peers. Those who successfully recruited at least one peer were significantly more likely to be in a stable living accommodation compared to those who did not recruit any peers (51.1% versus 42.7%; p < 0.05). Only 45.9% of the food coupons were claimed for successful recruitment of peers. Peer-referred IDUs were more likely to be living with family or relatives (50.7% versus ORW: 40.1% and walk-in: 39.8%; p < 0.001) rather than on the street or shared housings compared to the other two recruitment modes. Walk-ins were more likely than peer-referred and ORW-referred IDUs to be HIV-positive (walk-ins: 26.1%; peer-referred: 19.1%; ORW: 19.9%; p < 0.01) and have risky injection practices (walk-ins: 62.2%; ORW: 57.0%; peer-referred: 58.6%; p < 0.05). The cost per IDU recruited through ORW referral method was the most costly at USD 16.30, followed by peer-referral at USD 8.40 and walk-in at USD 7.50. CONCLUSION: When recruiting a large number of IDUs, using multiple recruitment modes is ideal with regard to diversification of IDU characteristics and risk profile. Although it was the most costly, ORW recruitment was more effective than the other two methods. Lack of monetary compensation for successful recruitment of peers may have hampered peer-referral.


Asunto(s)
Infecciones por VIH/prevención & control , Selección de Paciente , Abuso de Sustancias por Vía Intravenosa/rehabilitación , Adulto , Atención Ambulatoria/economía , Atención Ambulatoria/estadística & datos numéricos , Distribución de Chi-Cuadrado , Costos y Análisis de Costo , Femenino , Infecciones por VIH/economía , Reducción del Daño , Humanos , India , Estudios Longitudinales , Masculino , Persona de Mediana Edad , Motivación , Aceptación de la Atención de Salud/estadística & datos numéricos , Derivación y Consulta/estadística & datos numéricos , Abuso de Sustancias por Vía Intravenosa/economía , Encuestas y Cuestionarios
7.
JAMA ; 310(20): 2154-63, 2013 Nov 27.
Artículo en Inglés | MEDLINE | ID: mdl-24281460

RESUMEN

IMPORTANCE: Micronutrient deficiencies occur early in human immunodeficiency virus (HIV) infection, and supplementation with micronutrients may be beneficial; however, its effectiveness has not been investigated early in HIV disease among adults who are antiretroviral therapy (ART) naive. OBJECTIVE: To investigate whether long-term micronutrient supplementation is effective and safe in delaying disease progression when implemented early in adults infected with HIV subtype C who are ART-naive. DESIGN, SETTING, AND PARTICIPANTS: Randomized clinical trial of supplementation with either daily multivitamins (B vitamins and vitamins C and E), selenium alone, or multivitamins with selenium vs placebo in a factorial design for 24 months. The study was conducted in 878 patients infected with HIV subtype C with a CD4 cell count greater than 350/µL who were not receiving ART at Princess Marina Hospital in Gaborone, Botswana, between December 2004 and July 2009. INTERVENTIONS: Daily oral supplements of B vitamins and vitamins C and E, selenium alone, or multivitamins plus selenium, compared with placebo. MAIN OUTCOMES AND MEASURES: Reaching a CD4 cell count less than 200/µL until May 2008; after this date, reaching a CD4 cell count of 250/µL or less, consistent with the standard of care in Botswana for initiation of ART at the time of the study. RESULTS: There were 878 participants enrolled and randomized into the study. All participants were ART-naive throughout the study. In intent-to-treat analysis, participants receiving the combined supplement of multivitamins plus selenium had a significantly lower risk vs placebo of reaching CD4 cell count 250/µL or less (adjusted hazard ratio [HR], 0.46; 95% CI, 0.25-0.85; P = .01; absolute event rate [AER], 4.79/100 person-years; censoring rate, 0.92; 17 events; placebo AER, 9.22/100 person-years; censoring rate, 0.85; 32 events). Multivitamins plus selenium in a single supplement, vs placebo, also reduced the risk of secondary events of combined outcomes for disease progression (CD4 cell count ≤250/µL, AIDS-defining conditions, or AIDS-related death, whichever occurred earlier [adjusted HR, 0.56; 95% CI, 0.33-0.95; P = .03; AER, 6.48/100 person-years; censoring rate, 0.90; 23 events]). There was no effect of supplementation on HIV viral load. Multivitamins alone and selenium supplementation alone were not statistically different from placebo for any end point. Reported adverse events were adjudicated as unlikely to be related to the intervention, and there were no notable differences in incidence of HIV-related and health-related events among study groups. CONCLUSIONS AND RELEVANCE: In ART-naive HIV-infected adults, 24-month supplementation with a single supplement containing multivitamins and selenium was safe and significantly reduced the risk of immune decline and morbidity. Micronutrient supplementation may be effective when started in the early stages of HIV disease.


Asunto(s)
Enfermedades Carenciales/tratamiento farmacológico , Suplementos Dietéticos , Infecciones por VIH/complicaciones , Selenio/administración & dosificación , Vitaminas/administración & dosificación , Adulto , Antirretrovirales/uso terapéutico , Botswana , Recuento de Linfocito CD4 , Enfermedades Carenciales/complicaciones , Progresión de la Enfermedad , Quimioterapia Combinada , Femenino , Infecciones por VIH/tratamiento farmacológico , Humanos , Estimación de Kaplan-Meier , Masculino , Resultado del Tratamiento , Carga Viral
8.
Afr J Prim Health Care Fam Med ; 15(1): e1-e7, 2023 Feb 21.
Artículo en Inglés | MEDLINE | ID: mdl-36861920

RESUMEN

BACKGROUND: In resource limited-settings, timely tuberculosis (TB) diagnosis depends upon referral of sputum samples from non-diagnostic to diagnostic facilities for examination. The TB programme data for 2018 suggested losses in Mpongwe District's sputum referral cascade. AIM: This study aimed to identify the referral cascade stage where loss of sputum specimen occurred. SETTING: Primary health care facilities in Mpongwe District, Copperbelt Province, Zambia. METHODS: Data were retrospectively collected from one central laboratory and six referring health facilities between January and June 2019, using a paper-based tracking sheet. Descriptive statistics were generated in SPSS version 22. RESULTS: Of the 328 presumptive pulmonary TB patients found in presumptive TB registers at referring facilities, 311 (94.8%) submitted sputum samples and were referred to the diagnostic facilities. Of these, 290 (93.2%) were received at the laboratory, and 275 (94.8%) were examined. The remaining 15 (5.2%) were rejected for reasons such as 'insufficient sample'. Results for all examined samples were sent back and received at referring facilities. Referral cascade completion rate was 88.4%. Median turnaround time was six days (IQR = 1.8). CONCLUSION: Losses in the sputum referral cascade for Mpongwe District mainly occurred between dispatch of sputum samples and receipt at diagnostic facility. Mpongwe District Health Office needs to establish a system to monitor and evaluate the movement of sputum samples along the referral cascade to minimize losses and ensure timely TB diagnosis.Contribution: This study has highlighted, at primary health care level for resource limited settings, the stage in the sputum sample referral cascade where losses mainly occur.


Asunto(s)
Esputo , Tuberculosis , Humanos , Zambia , Estudios Retrospectivos , Tuberculosis/diagnóstico , Derivación y Consulta
9.
PLOS Glob Public Health ; 3(2): e0001234, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-36962999

RESUMEN

Itezhi-Tezhi District in southern Zambia has been reporting tuberculosis (TB) mortality rates that are fourfold higher than the national average of six percent. We conducted a retrospective cohort study to establish the demographic and clinical characteristics associated with mortality among persons under treatment for TB in Itezhi-Tezhi District, as well as the likely causes and time to death. We reviewed medical records for persons with TB registered in 19 public health facilities in Itezhi-Tezhi District between January 2015 and December 2018. Of the 506 persons with TB registered in the study period, 426 were included in the analysis. Of these, 71 (16.7%) died before completing treatment. The overall mortality rate was 31.8 per 1,000 person-months of observation. Most of the deaths (53 [74.7%]) occurred in the first month of treatment (median: 16 days; interquartile range: 5-52 days). In a multivariate Cox regression model, type of TB was found to be an independent predictor of mortality while on TB treatment. The risk of dying was more than twice higher for persons with clinically diagnosed PTB compared to those with bacteriologically confirmed PTB (adjusted hazard ratio = 2.2, 95% CI: 1.4-3.6). In a sub-analysis of persons with clinically diagnosed PTB, persons with TB who were on a community-based DOT plan were more than twice more likely to die compared to those on facility-based DOT plan (adjusted hazard ratio = 2.21, 95% CI: 1.1-4.8). Common likely causes of death were pulmonary TB disease (66.0%), anemia (12.8%), cardiac failure (4.3%), pneumocystis jiroveci pneumonia (4.3%), and gastroenteritis (4.2%). These findings show that most deaths occurred during the first month of treatment. Clinical evaluation at initiation of anti-TB treatment and during follow-up care, especially in persons with clinically diagnosed PTB, should include screening and treatment of other conditions.

10.
J Int AIDS Soc ; 26 Suppl 1: e26112, 2023 07.
Artículo en Inglés | MEDLINE | ID: mdl-37408447

RESUMEN

INTRODUCTION: Engaging communities in the design, implementation and monitoring of health services is critical for delivering high-quality, person-centred services that keep people living with HIV engaged in care. The USAID-funded Integrated HIV/AIDS Project in Haut-Katanga (IHAP-HK) integrated an electronic client feedback tool into continuous quality improvement (CQI) processes. We aimed to demonstrate this system's impact on identifying and improving critical quality-of-care gaps. METHODS: Through stakeholder and empathy mapping, IHAP-HK co-designed a service quality monitoring system-comprising anonymous exit interviews and ongoing monitoring through CQI cycles-with people living with HIV, facility-based providers and other community stakeholders. IHAP-HK trained 30 peer educators to administer oral, 10- to 15-minute exit interviews with people living with HIV following clinic appointments, and record responses via the KoboToolbox application. IHAP-HK shared client feedback with facility CQI teams and peer educators; identified quality-of-care gaps; discussed remediation steps for inclusion in facility-level improvement plans; and monitored implementation of identified actions. IHAP-HK tested this system at eight high-volume facilities in Haut-Katanga province from May 2021 through September 2022. RESULTS: Findings from 4917 interviews highlighted wait time, stigma, service confidentiality and viral load (VL) turnaround time as key issues. Solutions implemented included: (1) using peer educators to conduct preparatory tasks (pre-packaging and distributing refills; pulling client files) or escort clients to consultation rooms; (2) limiting personnel in consultation rooms during client appointments; (3) improving facility access cards; and (4) informing clients of VL results via telephone or home visits. Due to these actions, between initial (May 2021) and final interviews (September 2022), client satisfaction with wait times improved (76% to 100% reporting excellent or acceptable wait times); reported cases of stigma decreased (5% to 0%); service confidentiality improved (71% to 99%); and VL turnaround time decreased (45% to 2% informed of VL results 3 months after sample collection). CONCLUSIONS: Our results showed the feasibility and effectiveness of using an electronic client feedback tool embedded in CQI processes to collect client perspectives to improve service quality and advance client-responsive care in the Democratic Republic of Congo. IHAP-HK recommends further testing and expansion of this system to advance person-centred health services.


Asunto(s)
Infecciones por VIH , Mejoramiento de la Calidad , Humanos , Infecciones por VIH/terapia , República Democrática del Congo , Retroalimentación , Atención Dirigida al Paciente
11.
AIDS Behav ; 16(5): 1260-4, 2012 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-21901486

RESUMEN

Exclusive breastfeeding has been associated with a reduced risk of late vertical HIV transmission as compared to an infant diet composed of breast milk mixed with supplemental foods or liquids. Hypothesized mechanisms include increased infectivity of breast milk from mothers who practice mixed breastfeeding (MBF), or mechanisms such as increased gastrointestinal permeability in the infant caused by mixed feeding. It has been proposed that MBF may result in subclinical mastitis and higher breast milk HIV titers. However, little is known about the relationship between feeding strategy and breast milk viral load. We measured the HIV-1 concentration in breast milk in a sub-cohort of women enrolled in a mother-to-child HIV transmission prevention trial (the "Mashi" study). We report no observed relationship between MBF and measured breast milk viral RNA load. Our findings suggest that the increased transmission risk associated with higher breast milk HIV-1 RNA during MBF is unlikely.


Asunto(s)
Lactancia Materna , Seropositividad para VIH/transmisión , Fórmulas Infantiles , Transmisión Vertical de Enfermedad Infecciosa/prevención & control , Mastitis/prevención & control , Leche Humana/virología , ARN Viral/análisis , Adulto , Botswana/epidemiología , Estudios de Cohortes , Femenino , Seropositividad para VIH/virología , Humanos , Lactante , Fenómenos Fisiológicos Nutricionales del Lactante , Recién Nacido , Mastitis/epidemiología , Embarazo , Carga Viral
12.
Artículo en Inglés | MEDLINE | ID: mdl-35162643

RESUMEN

Sputum specimen referral cascades in resource-limited settings are characterized by losses of specimens, resulting in delays in tuberculosis (TB) diagnosis. Mpulungu District Health Office in Zambia conducted a quantitative based cross-sectional study using both primary and secondary data to identify points at which loss of specimens occurred in the sputum referral cascade. Primary data were collected through observations and interviews with 22 TB service providers. Secondary data were collected through examination of patient files and presumptive TB and laboratory registers to retrospectively track sputum specimens referred by ten health centers from April to September 2018. Proportions of specimens/laboratory results at every stage of the referral cascade were calculated using Epi Info v7. Only 49 (23%) out of 209 sputum specimens completed the referral cascade. The remaining 160 (76%) were lost at various stages of the referral cascade. The largest loss (51%) occurred between the release of laboratory results by the diagnostic facility and their receipt at referring facilities. Barriers included an inadequate number of staff oriented in sputum specimen referral, negative staff attitudes, and lack of specimen packaging material and specimen transportation. The district health office should strengthen the sputum specimen referral system by providing transport and specimen packaging material and by training staff in sputum collection transportation and tracking.


Asunto(s)
Mycobacterium tuberculosis , Esputo , Estudios Transversales , Humanos , Derivación y Consulta , Estudios Retrospectivos , Manejo de Especímenes , Zambia/epidemiología
13.
N Engl J Med ; 356(2): 135-47, 2007 Jan 11.
Artículo en Inglés | MEDLINE | ID: mdl-17215531

RESUMEN

BACKGROUND: A single dose of nevirapine during labor reduces perinatal transmission of human immunodeficiency virus type 1 (HIV-1) but often leads to viral nevirapine resistance mutations in mothers and infants. METHODS: We studied the response to nevirapine-based antiretroviral treatment among women and infants who had previously been randomly assigned to a single, peripartum dose of nevirapine or placebo in a trial in Botswana involving the prevention of the transmission of HIV-1 from mother to child. All women were treated with antenatal zidovudine. The primary end point for mothers and infants was virologic failure by the 6-month visit after initiation of antiretroviral treatment, estimated within groups by the Kaplan-Meier method. RESULTS: Of 218 women who started antiretroviral treatment, 112 had received a single dose of nevirapine and 106 had received placebo. By the 6-month visit after the initiation of antiretroviral treatment, 5.0% of the women who had received placebo had virologic failure, as compared with 18.4% of those who had received a single dose of nevirapine (P=0.002). Among 60 women starting antiretroviral treatment within 6 months after receiving placebo or a single dose of nevirapine, no women in the placebo group and 41.7% in the nevirapine group had virologic failure (P<0.001). In contrast, virologic failure rates did not differ significantly between the placebo group and the nevirapine group among 158 women starting antiretroviral treatment 6 months or more post partum (7.8% and 12.0%, respectively; P=0.39). Thirty infants also began antiretroviral treatment (15 in the placebo group and 15 in the nevirapine group). Virologic failure by the 6-month visit occurred in significantly more infants who had received a single dose of nevirapine than in infants who had received placebo (P<0.001). Maternal and infant findings did not change qualitatively by 12 and 24 months after the initiation of antiretroviral treatment. CONCLUSIONS: Women who received a single dose of nevirapine to prevent perinatal transmission of HIV-1 had higher rates of virologic failure with subsequent nevirapine-based antiretroviral therapy than did women without previous exposure to nevirapine. However, this applied only when nevirapine-based antiretroviral therapy was initiated within 6 months after receipt of a single, peripartum dose of nevirapine. (ClinicalTrials.gov number, NCT00197587 [ClinicalTrials.gov].).


Asunto(s)
Antirretrovirales/administración & dosificación , Infecciones por VIH/tratamiento farmacológico , VIH-1 , Transmisión Vertical de Enfermedad Infecciosa/prevención & control , Nevirapina/administración & dosificación , Complicaciones Infecciosas del Embarazo/tratamiento farmacológico , Adulto , Antirretrovirales/uso terapéutico , Método Doble Ciego , Farmacorresistencia Viral/genética , Quimioterapia Combinada , Femenino , Genotipo , Infecciones por VIH/transmisión , VIH-1/genética , Humanos , Recién Nacido , Estimación de Kaplan-Meier , Trabajo de Parto , Mutación , Embarazo , Tercer Trimestre del Embarazo , Modelos de Riesgos Proporcionales , Estudios Prospectivos , ARN Viral/sangre , Factores de Riesgo , Insuficiencia del Tratamiento , Carga Viral , Zidovudina/uso terapéutico
14.
PLoS One ; 15(4): e0230823, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32324764

RESUMEN

We conducted a cross sectional survey in Zimbabwe to describe urban-rural disparity in socio-demographic characteristics and sexual behaviors of HIV-positive adolescent girls and young women (AGYW) and their male sexual partners. Between September and November 2016, we interviewed 360 sexually active HIV positive AGYW, aged 15--24 years attending ART and PMTCT clinics in urban and rural health facilities in Harare and Mazowe district respectively. HIV positive AGYW in rural areas as compared to those in urban areas were older, less educated, more frequently married or cohabiting, had lower number of male sexual partners in their lifetime and in the last 12 months preceding the survey. They were mostly heterosexually infected, more likely to disclose their status to a family member and to be more adherent to ART (OR = 2.5-95% CI = 1.1-5.5). Most recent male sexual partners of HIV positive AGYW in urban areas as compared to those from rural areas were mainly current or former boyfriends, single, more educated, less likely to have a child with them and to engage in couple voluntary counseling and testing (CVCT). They were more likely to patronize dancing and drinking venues and involved in transactional sex (OR = 2.2-95% CI: 1.2-4). They were also more likely to be circumcised (OR = 2.3-95% CI: 1.3-4.1) and to use condom more consistently in the last 12 months preceding the survey. Our study findings called for the strengthening of HIV prevention interventions in urban areas among HIV positive AGYW who had more than one partner in their lifetime or are patronizing dancing and drinking venues. In Zimbabwe, promotion of CVCT, index testing, male circumcision and condom use should be sustained to engage male sexual partners of both urban and rural HIV positive AGYW in HIV prevention.


Asunto(s)
Seropositividad para VIH/psicología , Población Rural/estadística & datos numéricos , Conducta Sexual/psicología , Parejas Sexuales/psicología , Factores Socioeconómicos , Población Urbana/estadística & datos numéricos , Adolescente , Estudios Transversales , Femenino , Seropositividad para VIH/epidemiología , Humanos , Masculino , Encuestas y Cuestionarios , Adulto Joven , Zimbabwe/epidemiología
15.
Int J STD AIDS ; 30(4): 386-395, 2019 03.
Artículo en Inglés | MEDLINE | ID: mdl-30541403

RESUMEN

Unprotected sex, common among people who inject drugs, puts them and their partners at risk of sexually transmitted infections including human immunodeficiency virus (HIV). This analysis assesses the changes in sexual risk behavior with regular female partners (RFPs), among married men who inject drugs, before and after implementation of a HIV prevention intervention, and identifies correlates of unprotected sex. People who inject drugs (PWID) were assessed at three points: baseline, preintervention follow-up visit (FV)1, and postintervention FV2. Descriptive analysis was used for reporting changes in sexual behavior over time. Generalized estimating equation assessed the population-averaged change in self-reported unprotected sex with an RFP, attributable to intervention uptake. Multivariable logistic regression determined correlates of self-reported unprotected sex with an RFP at FV2. Findings suggest that the proportion of men reporting any unprotected sex remained high (baseline = 46.0%, FV1 = 43.5%, FV2 = 37.0%). A reduction was observed in unprotected sex after the intervention phase, but this could not be attributed to uptake of the intervention. Higher odds of self-reported unprotected sex with an RFP in the past three months at FV2 were associated with self-reported unprotected sex at baseline, living with family, and being HIV-negative. Married male PWID should receive counseling for safe sex with RFPs, especially those who are HIV-negative and live with their families.


Asunto(s)
Infecciones por VIH/psicología , Conducta de Reducción del Riesgo , Parejas Sexuales , Abuso de Sustancias por Vía Intravenosa/epidemiología , Abuso de Sustancias por Vía Intravenosa/psicología , Sexo Inseguro/estadística & datos numéricos , Adulto , Femenino , Infecciones por VIH/epidemiología , Infecciones por VIH/transmisión , Humanos , India/epidemiología , Masculino , Persona de Mediana Edad , Prevalencia , Estudios Prospectivos , Asunción de Riesgos , Sexo Inseguro/psicología
16.
Int J Epidemiol ; 48(1): 217-227, 2019 02 01.
Artículo en Inglés | MEDLINE | ID: mdl-30358840

RESUMEN

BACKGROUND: The impact and cost-effectiveness of couples' voluntary HIV counselling and testing (CVCT) has not been quantified in real-world settings. We quantify cost-per-HIV-infection averted by CVCT in Zambia from the donor's perspective. METHODS: From 2010 to 2016, CVCT was established in 73 Zambian government clinics. The cost-per-HIV-infection averted (CHIA) of CVCT was calculated using observed expenditures and effectiveness over longitudinal follow-up. These observed measures parameterized hypothetical 5-year nationwide implementations of: 'CVCT'; 'treatment-as-prevention (TasP) for discordant couples' identified by CVCT; and 'population TasP' for all HIV+ cohabiting persons identified by individual testing. RESULTS: In all, 207 428 couples were tested (US $52/couple). Among discordant couples in which HIV+ partners self-reported antiretroviral therapy (ART), HIV incidence was 8.5/100 person-years before and 1.8/100 person-years after CVCT (79% reduction). Corresponding reductions for non-ART-using discordant and concordant negative couples were 63% and 47%, respectively. CVCT averted an estimated 58% of new infections at US $659 CHIA. In nationwide implementation models, CVCT would prevent 17 times the number of infections vs 'TasP for discordant couples' at 86% of the cost, and nine times the infections vs 'population TasP' at 28% of the cost. CONCLUSIONS: CVCT is a cost-effective, feasible prevention strategy in Zambia. We demonstrate the novel, added effectiveness of providing CVCT to ART users, for whom ART use alone only partially mitigated transmission risk. Our results indicate a major policy shift (supporting development of CVCT indicators, budgets and targets) and have clinical implications (suggesting promotion of CVCT in ART clinics as a high-impact prevention strategy).


Asunto(s)
Consejo/organización & administración , Infecciones por VIH/epidemiología , Infecciones por VIH/prevención & control , Tamizaje Masivo/economía , Parejas Sexuales , Adulto , Antirretrovirales/uso terapéutico , Costos y Análisis de Costo , Femenino , Infecciones por VIH/economía , Humanos , Masculino , Evaluación de Programas y Proyectos de Salud , Programas Voluntarios , Zambia/epidemiología
17.
Artículo en Inglés | MEDLINE | ID: mdl-30586870

RESUMEN

HIV/AIDS and other sexually transmitted infections (STIs) continue to be among the greatest public health threats worldwide, especially in sub-Saharan Africa (SSA). Condom use remains an essential intervention to eradicate AIDS, and condom use is now higher than ever. However, free and subsidized condom funding is declining. Research on how to create healthy markets based on willingness to pay for condoms is critically important. This research has three primary aims: (1) willingness of free condom users in five African countries to pay for socially marketed condoms; (2) the relationship between specific population variables and condom brand marketing efforts and willingness to pay; and (3) potential opportunities to improve condom uptake. Nationally representative samples of at least 1200 respondents were collected in Kenya, Nigeria, South Africa, Zambia, and Zimbabwe. We collected data on a range of demographic factors, including condom use, sexual behavior, awareness of condom brands, and willingness to pay. We estimated multivariate linear regression models and found that free condom users are overwhelmingly willing to pay for condoms overall (over 90% in Nigeria) with variability by country. Free users were consistently less willing to pay for condoms if they had a positive identification with their free brand in Kenya and Zimbabwe, suggesting that condom branding is a critical strategy. Ability to pay was negatively correlated with willingness, but users who could not obtain free condoms were willing to pay for them in Kenya and Zimbabwe. In a landscape of declining donor funding, this research suggests opportunities to use scarce funds for important efforts such as campaigns to increase demand, branding of condoms, and coordination with commercial condom manufacturers to build a healthy total market approach for the product. Free condoms remain an important HIV/AIDS prevention tool. Building a robust market for paid condoms in SSA is a public health priority.


Asunto(s)
Condones/economía , Condones/estadística & datos numéricos , Sexo Seguro/psicología , Sexo Seguro/estadística & datos numéricos , Conducta Sexual/psicología , Conducta Sexual/estadística & datos numéricos , Mercadeo Social , Síndrome de Inmunodeficiencia Adquirida/prevención & control , Adulto , Infecciones por VIH/prevención & control , Humanos , Kenia , Masculino , Persona de Mediana Edad , Nigeria , Enfermedades de Transmisión Sexual/prevención & control , Sudáfrica , Zambia , Zimbabwe
18.
PLoS One ; 13(3): e0194732, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-29566062

RESUMEN

BACKGROUND: New HIV infections among sub-Saharan Africa's adolescent girls and young women (AGYW, ages 15-24) greatly exceed those of their male peers. In addition, AGYW tend to acquire HIV at a much earlier age. Understanding the factors associated with HIV infection in AGYW could inform effective prevention and treatment interventions for these populations and their male sexual partners. METHODS: This qualitative study, conducted October-November 2016, was a follow on to a quantitative survey that sought to characterize male sexual partners and sexual behaviors of sexually active HIV positive AGYW in Zimbabwe. The qualitative study explored sexual behavior experiences and characteristics of male-female partnerships among the same participants. We conducted in-depth interviews with purposively sampled AGYW (16-24 years). Audio recorded qualitative data were transcribed, translated into English, and thematically coded using NVivo. RESULTS: 28 AGYW (n = 14 urban, n = 14 rural) took part in the in-depth interviews. 50% were 16-19 years old. Discussions with 10/11 (91%) AGYW who were reportedly infected through sex suggested that they had acquired HIV from their husbands or romantic partners. Accounts also suggested that the age difference between respondents and their male sexual partners was ≥5 years. Overall, respondents described two types of male partners: those older (''sugar daddies'', men ≥35 years old) and younger (<35 years). Respondents felt unable to suggest condom use to both older and younger partners. Evident in respondents' accounts was a general low HIV risk perception, particularly with younger men, which was largely due to poor HIV knowledge. Discussions suggested that an AGYW's relationship with either male partner was characterized by some form of violence. CONCLUSIONS: Discussions highlighted the nature and characteristics of relationships between AGYW and their male sexual partners. Findings could inform interventions to engender risk perception among AGYW, promote female-controlled HIV prevention efforts and, foster risk-reduction among men.


Asunto(s)
Infecciones por VIH/epidemiología , Seropositividad para VIH/epidemiología , Conducta Sexual/estadística & datos numéricos , Parejas Sexuales , Adolescente , Adulto , Condones/estadística & datos numéricos , Femenino , Infecciones por VIH/psicología , Seropositividad para VIH/psicología , VIH-1 , Humanos , Masculino , Asunción de Riesgos , Parejas Sexuales/psicología , Factores Socioeconómicos , Encuestas y Cuestionarios , Adulto Joven , Zimbabwe/epidemiología
19.
Patient Educ Couns ; 65(3): 296-302, 2007 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-17029865

RESUMEN

OBJECTIVE: To determine uptake and socio-demographics predictors of acceptance of voluntary counseling and testing (VCT) among post-partum women in Botswana. METHODS: Women attending maternal and child health clinics for their first post-partum or well baby visit in three sites in Botswana were offered VCT after a written informed consent. A standardized questionnaire was used to collect socio-demographic characteristics and reasons for declining VCT. RESULTS: From March 1999 to November 2000, we approached 1735 post-partum women. Only 937 (54%) of those approached accepted VCT. In multiple logistic regression analysis, younger maternal age, not being married, and less formal education were significant predictors of acceptance of VCT. Thirty percent of women who accepted VCT were HIV-positive. CONCLUSION: Our results indicated that in Botswana prior to the initiation of a government Mother to Child Transmission (MTCT) prevention program, younger, unmarried, and less educated post-partum women were more likely to undergo VCT. PRACTICE IMPLICATIONS: Our results have shown that interventions to improve VCT among post-partum women and more generally among women of reproductive age are warranted in Botswana. These interventions should account for differences such age, marital status, education, and partner involvement to maximize VCT uptake.


Asunto(s)
Serodiagnóstico del SIDA/psicología , Consejo/organización & administración , Madres/psicología , Aceptación de la Atención de Salud/psicología , Atención Posnatal , Programas Voluntarios/organización & administración , Serodiagnóstico del SIDA/métodos , Adolescente , Adulto , Análisis de Varianza , Botswana/epidemiología , Escolaridad , Femenino , Seroprevalencia de VIH , Encuestas de Atención de la Salud , Conocimientos, Actitudes y Práctica en Salud , Necesidades y Demandas de Servicios de Salud , Humanos , Modelos Logísticos , Estado Civil , Edad Materna , Centros de Salud Materno-Infantil , Madres/educación , Madres/estadística & datos numéricos , Ocupaciones/estadística & datos numéricos , Aceptación de la Atención de Salud/estadística & datos numéricos , Atención Posnatal/organización & administración , Atención Posnatal/psicología , Factores Socioeconómicos , Encuestas y Cuestionarios
20.
BMJ Open ; 7(11): e018530, 2017 Nov 19.
Artículo en Inglés | MEDLINE | ID: mdl-29158326

RESUMEN

OBJECTIVES: To explore contextual factors that increase vulnerabilities to negative sexual and reproductive health (SRH) outcomes and possible differences in SRH-related behaviours and the needs of women who use drugs (WUD) through non-injecting and injecting routes. DESIGN: Qualitative study design using semi-structured in-depth interviews. PARTICIPANTS: Twenty women who injected drugs in the past 3 months and 28 women who reported using drugs through non-injecting routes in the past 1 month. SETTING: Interviews were conducted at community-based, drop-in centres in Delhi, India. RESULTS: Study findings illustrate that WUD were sexually active and had multiple sex partners including clients of sex work. Transient relationships were reported and many participants engaged in unsafe sex. Factors which affected safe sex behaviours included: gender power imbalance, limited agency for decision-making, lack of accurate information for correct self-risk assessment, and being under the influence of drugs. Despite high awareness, low and inconsistent contraceptive use was reported. Some participants were coerced to conceive while a few others reported their inability to conceive. Violence was a key determinant for SRH outcomes. Perception of certain adverse health outcomes (such as infertility) to be 'common and expected among WUD' influenced access to healthcare. Further, healthcare providers' stigmatising attitudes and lack of women-centric services deterred women from uptake of healthcare services. CONCLUSION: Findings highlight that SRH-related behaviours and needs of this group are a complex interplay of multiple determinants which need to be addressed at all levels: individual, family, community and institutional. It is imperative to roll out a 'one-stop-shop' for a comprehensive package of health services. Expansion of existing drop-in-centres could be considered for setting-up community-based women-centric services with appropriate linkage to drug dependence treatment and reproductive health services.


Asunto(s)
Accesibilidad a los Servicios de Salud , Servicios de Salud Reproductiva , Salud Reproductiva , Conducta Sexual , Salud Sexual , Trastornos Relacionados con Sustancias , Mujeres , Adulto , Actitud del Personal de Salud , Toma de Decisiones , Consumidores de Drogas , Femenino , Identidad de Género , Conocimientos, Actitudes y Práctica en Salud , Humanos , India , Poder Psicológico , Investigación Cualitativa , Reproducción , Servicios de Salud Reproductiva/estadística & datos numéricos , Factores Sexuales , Parejas Sexuales , Sexo Inseguro , Violencia , Adulto Joven
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