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1.
Lancet HIV ; 11(4): e245-e254, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38467135

RESUMO

BACKGROUND: In 2014, UNAIDS set a goal to end the AIDS epidemic by achieving targets for the percentage of people living with HIV who were aware of their status, on antiretroviral therapy (ART), and virally suppressed. In 2020, these targets were revised to 95% for each measure (known as 95-95-95), to be reached among people living with HIV by 2025. We used data from the Fifth Botswana AIDS Impact Survey (BAIS V) to measure progress towards these testing and treatment targets in Botswana. METHODS: BAIS V used a two-stage cluster design to obtain a nationally representative sample of people aged 15-64 years in Botswana. During March-August, 2021, 14 763 consenting participants were interviewed and tested for HIV in their households by survey teams. HIV-positive specimens were tested for viral load, presence of antiretroviral drugs, and recency of infection using the HIV-1 limiting antigen avidity enzyme immunoassay. Estimates of HIV-positive status and use of ART were based on self-report and the analysis of blood specimens for antiretroviral drugs. Viral load suppression was defined as an HIV RNA concentration of less than 1000 copies per mL. HIV incidence was calculated using the recent infection testing algorithm. Data were weighted to account for the complex survey design. FINDINGS: The national HIV prevalence in Botswana among people aged 15-64 years was 20·8% and the annual incidence of HIV infection was 0·2%. 95·1% (men 93·0%, women 96·4%) of people living with HIV aged 15-64 years were aware of their status, 98·0% (men 97·2%, women 98·4%) of those aware were on ART, and 97·9% (men 96·6%, women 98·6%) of those on ART had viral load suppression. Among young people (aged 15-24 years) living with HIV, 84·5% were aware of their status, 98·5% of those aware were on ART, and 91·6% of those on ART had viral load suppression. The prevalance of viral load suppression among all people living with HIV was 91·8%, and varied by district-ranging from 85·3% in Gaborone to 100·0% in Selibe Phikwe. INTERPRETATION: BAIS V is the first population-based survey worldwide to report the achievement of the UNAIDS 95-95-95 goals, both overall and among women. Strategies to reach undiagnosed men and young people, including young women, are needed. FUNDING: US President's Emergency Plan for AIDS Relief.


Assuntos
Síndrome de Imunodeficiência Adquirida , Infecções por HIV , Masculino , Humanos , Feminino , Adolescente , Síndrome de Imunodeficiência Adquirida/tratamento farmacológico , Síndrome de Imunodeficiência Adquirida/epidemiologia , Infecções por HIV/tratamento farmacológico , Infecções por HIV/epidemiologia , Botsuana/epidemiologia , Antirretrovirais/uso terapêutico , Inquéritos e Questionários , Carga Viral , Prevalência
2.
Microbiol Spectr ; 11(3): e0314822, 2023 06 15.
Artigo em Inglês | MEDLINE | ID: mdl-37071009

RESUMO

Population-based HIV Impact Assessments (PHIAs) are national household (HH) surveys that provide HIV diagnosis and CD4 testing with an immediate return of results. Accurate CD4 results improve HIV-positive participants' clinical care and inform the effectiveness of HIV programs. Here, we present CD4 results from the PHIA surveys that were conducted in 11 countries in sub-Saharan Africa between 2015 and 2018. All of the HIV-positive participants and 2 to 5% of the HIV-negative participants were offered Pima CD4 (Abbott, IL, USA) point-of-care (POC) tests. The quality of the CD4 test was ensured by conducting instrument verification, comprehensive training, quality control, a review of testing errors and an analysis of unweighted CD4 data by HIV status, age, gender, and antiretroviral (ARV) treatment status. Overall, CD4 testing was completed for 23,085 (99.5%) of the 23,209 HIV-positive and 7,329 (2.7%) of the 270,741 negative participants in 11 surveys. The instrument error rate was 11.3% (range, 4.4% to 15.7%). The median CD4 values among HIV-positive and HIV-negative participants (aged 15+) were 468 cells/mm3 (interquartile range [IQR], 307 to 654) and 811 cells/mm3 (IQR, 647 to 1,013), respectively. Among the HIV-positive participants (aged 15+), those with detectable ARVs had higher CD4 values (508 cells/mm3) than those with undetectable ARVs (385.5 cells/mm3). Among the HIV-positive participants (aged 15+), 11.4% (2,528/22,253) had a CD4 value of less than 200 cells/mm3, and approximately half of them (1,225/2,528 = 48.5%) had detectable ARVs, whereas 51.5% (1,303/2,528) had no detectable ARVs (P < 0.0001). We successfully implemented high quality POC CD4 testing using Pima instruments. Our data come from nationally representative surveys in 11 countries and provide unique insights regarding the CD4 distribution among HIV-positive individuals as well as the baseline CD4 values among HIV-negative individuals. IMPORTANCE The manuscript describes CD4 levels among HIV-positive individuals and baseline CD4 levels among HIV-negative individuals from 11 sub-Saharan countries, thereby highlighting the importance of CD4 markers in the context of the HIV epidemic. Despite increased ARV access in each country, advanced HIV disease (CD4 < 200 cells/mm3) persists among approximately 11% of HIV-positive individuals. Therefore, it is important that our findings are shared with the scientific community to assist with similar implementations of point-of-care testing and to conduct a review of HIV programmatic gaps.


Assuntos
Infecções por HIV , Sistemas Automatizados de Assistência Junto ao Leito , Humanos , Antirretrovirais/uso terapêutico , Contagem de Linfócito CD4 , HIV , Infecções por HIV/diagnóstico , Infecções por HIV/tratamento farmacológico , Infecções por HIV/epidemiologia , Testes Imediatos , Indicadores de Qualidade em Assistência à Saúde
3.
J Acquir Immune Defic Syndr ; 87(Suppl 1): S17-S27, 2021 08 01.
Artigo em Inglês | MEDLINE | ID: mdl-34166309

RESUMO

BACKGROUND: Conducting HIV surveys in resource-limited settings is challenging because of logistics, limited availability of trained personnel, and complexity of testing. We described the procedures and systems deemed critical to ensure high-quality laboratory data in the population-based HIV impact assessments and large-scale household surveys. METHODS: Laboratory professionals were engaged in every stage of the surveys, including protocol development, site assessments, procurement, training, quality assurance, monitoring, analysis, and reporting writing. A tiered network of household, satellite laboratories, and central laboratories, accompanied with trainings, optimized process for blood specimen collection, storage, transport, and real-time monitoring of specimen quality, and test results at each level proved critical in maintaining specimen integrity and high-quality testing. A plausibility review of aggregate merged data was conducted to confirm associations between key variables as a final quality check for quality of laboratory results. RESULTS: Overall, we conducted a hands-on training for 3355 survey staff across 13 surveys, with 160-387 personnel trained per survey on biomarker processes. Extensive training and monitoring demonstrated that overall, 99% of specimens had adequate volume and 99.8% had no hemolysis, indicating high quality. We implemented quality control and proficiency testing for testing, resolved discrepancies, verified >300 Pima CD4 instruments, and monitored user errors. Aggregate data review for plausibility further confirmed the high quality of testing. CONCLUSIONS: Ongoing engagement of laboratory personnel to oversee processes at all levels of the surveys is critical for successful national surveys. High-quality population-based HIV impact assessments laboratory data ensured reliable results and demonstrated the impact of HIV programs in 13 countries.


Assuntos
Infecções por HIV/diagnóstico , Infecções por HIV/epidemiologia , HIV-1 , Ensaio de Proficiência Laboratorial/normas , Países em Desenvolvimento , Monitoramento Epidemiológico , Inquéritos Epidemiológicos , Humanos , Pessoal de Laboratório/educação , Pessoal de Laboratório/normas , Controle de Qualidade
4.
Afr J Lab Med ; 3(2): 199, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-27066396

RESUMO

BACKGROUND: Past efforts to improve laboratory quality systems and to achieve accreditation for better patient care in the Caribbean Region have been slow. OBJECTIVE: To describe the impact of the Strengthening of Laboratory Management Toward Accreditation (SLMTA) training programme and mentorship amongst five clinical laboratories in the Caribbean after 18 months. METHOD: Five national reference laboratories from four countries participated in the SLMTA programme that incorporated classroom teaching and implementation of improvement projects. Mentors were assigned to the laboratories to guide trainees on their improvement projects and to assist in the development of Quality Management Systems (QMS). Audits were conducted at baseline, six months, exit (at 12 months) and post-SLMTA (at 18 months) using the Stepwise Laboratory Quality Improvement Process Towards Accreditation (SLIPTA) checklist to measure changes in implementation of the QMS during the period. At the end of each audit, a comprehensive implementation plan was developed in order to address gaps. RESULTS: Baseline audit scores ranged from 19% to 52%, corresponding to 0 stars on the SLIPTA five-star scale. After 18 months, one laboratory reached four stars, two reached three stars and two reached two stars. There was a corresponding decrease in nonconformities and development of over 100 management and technical standard operating procedures in each of the five laboratories. CONCLUSION: The tremendous improvement in these five Caribbean laboratories shows that SLMTA coupled with mentorship is an effective, user-friendly, flexible and customisable approach to the implementation of laboratory QMS. It is recommended that other laboratories in the region consider using the SLMTA training programme as they engage in quality systems improvement and preparation for accreditation.

5.
Kingston; s.n; 1995. 71 p.
Tese em Inglês | MedCarib | ID: med-3010

RESUMO

Drug abuse is a serious problem in Jamaica and around the world, affecting people from all walks of life. The most significant impact is among our youths who remain the most affected by drug abuse. A survey designed to assess knowledge, attitude and practice of students with regard to drug use was undertaken in schools. The study was conducted among 200 students in four all age schools, in the metropolitan area. In order to do the study a random sample was selected and a self administered questionnaire was used to collect the data. The results revealed that drug abuse was rising and was more common in males than females, in some cases the male to female ratio being four to one. Alcohol was the most commonly used drug, followed by tobacco, cannabis and inhalants. 90 percent of alcohol users became regular users. Among the illicit drugs, cannabis was most prevalent. For both crack and cocaine, the prevalence for current usage had increased significantly since 1987. Twenty percent of students believed there was no risk involved in taking drugs. In general the trend of drug use and abuse is on the rise and fifty percent of students taking drugs began before ten year of age. The author concluded that the problem of drug use and abuse had risen and made recommendations, including that institutions should be set up to deal with drug abuse in adolescents and existing educational programmes be strengthened and targeted at the lower age groups. (AU)


Assuntos
Adolescente , Humanos , Feminino , Masculino , Transtornos Relacionados ao Uso de Substâncias/epidemiologia , Conhecimentos, Atitudes e Prática em Saúde , Alcoolismo/epidemiologia , Abuso de Maconha , Cocaína Crack/efeitos adversos , Comportamento do Adolescente , Estudantes , Jamaica/epidemiologia
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