A5088097269- HIV/AIDS Research and Interventions
- Global Maternal and Child Health
- Adolescent Sexual and Reproductive Health
- HIV, Drug Use, Sexual Risk
- HIV/AIDS Impact and Responses
- Data-Driven Disease Surveillance
- Data Quality and Management
- COVID-19 epidemiological studies
- Poverty, Education, and Child Welfare
- Child Nutrition and Water Access
- Sex work and related issues
- Insurance, Mortality, Demography, Risk Management
- Mobile Health and mHealth Applications
- Healthcare Systems and Reforms
- Survey Methodology and Nonresponse
- Maternal and fetal healthcare
- Migration, Policy, and Dickens Studies
- Demographic Trends and Gender Preferences
- HIV-related health complications and treatments
- Global Health Care Issues
- Marriage and Sexual Relationships
- Vaccine Coverage and Hesitancy
- Maternal and Perinatal Health Interventions
- Global Health and Epidemiology
- COVID-19 Pandemic Impacts
London School of Hygiene & Tropical Medicine
2016-2025
University of the Witwatersrand
2009-2024
Agincourt Health and Socio-Demographic Surveillance System
2010-2024
University of London
2015-2023
Malawi Epidemiology and Intervention Research Unit
2020
University of Colorado Boulder
2008-2016
Princeton University
2008-2012
Woodrow Wilson International Center for Scholars
2009
GTx (United States)
2009
University of Pennsylvania
2003-2006
The demographic study of nuptiality in African countries is not very developed and often secondary interest a discussion the proximate determinants fertility. This paper uses unusual marriage history data to examine divorce remarriage i
Background: The rollout of antiretroviral therapy (ART) is one the largest public health interventions in Eastern and Southern Africa recent years. Its impact well described clinical cohort studies, but population-based evidence rare. Methods: We use data from seven demographic surveillance sites that also conduct community-based HIV testing collect information on uptake services. present crude death rates adults (aged 15–64) for period 2000–2011 by sex, status, treatment status. Parametric...
BackgroundAs the HIV epidemic in sub-Saharan Africa matures, evidence about age distribution of new infections and how this has changed over is needed to guide prevention. We aimed assess trends age-specific incidence six population-based cohort studies eastern southern Africa, reporting changes mean at infection, infections, birth cumulative incidence.MethodsWe used a Bayesian model reconstruct from repeated observations individuals' serostatus survival collected among population cohorts...
Much of our understanding about the effect concurrent sexual partnerships on spread HIV derives from mathematical models, but empirical evidence is limited. In this contribution, we focus polygyny, a common and institutionalized form concurrency for which data are available, study its relationship with prevalence at ecological level.First, describe country-level variation in polygyny HIV. Second, test between subnational level using country fixed-effects regression models 19 Demographic...
Objectives: Assessments of population-level effects antiretroviral therapy (ART) programmes in Africa are rare. We use data from burial sites to estimate trends adult AIDS mortality and the mitigating ART Addis Ababa. has been available since 2003, for free 2005. Methods: To substitute deficient vital registration, we surveillance burials at all cemeteries. present all-cause mortality, (ages 20–64 years) lay reports causes death. These first used as a diagnostic test true cause As reference...
Objectives: To assess the relationship between prior knowledge of one's HIV status and likelihood to refuse testing in populations-based surveys explore its potential for producing bias prevalence estimates. Methods: Using longitudinal survey data from Malawi, we estimate HIV-positive subsequent refusal an test. We use that parameter develop a heuristic model is applied six Demographic Health Surveys, which by not observed. The only adjusts conditional on completed interview. Results:...
<h3>Objective:</h3> To explore how sexual and marital trajectories are associated with HIV infection among ever-married women in rural Malawi. <h3>Methods:</h3> Retrospective survey data biomarker for 926 interviewed the Malawi Diffusion Ideational Change Project were used. The associations between four key life course transitions considered individually (age at debut, premarital activity, entry into marriage disruption by divorce or death) examined. These then sequenced to construct that...
Health and Demographic Surveillance Systems (HDSS) have been instrumental in advancing population health research low- middle- income countries where vital registration systems are often weak. However, the utility of HDSS would be enhanced if their databases could linked with those local facilities. We assess feasibility record linkage rural South Africa using data from Agincourt a facility.Using gold standard dataset 623 pairs matched by means fingerprints, we evaluate twenty scenarios...
Background: Behavioral changes are needed to limit the spread and mitigate impact of COVID-19 pandemic.
This article challenges the oversimplified image of an uneducated and undifferentiated immigrant labor force for Turks Moroccans through concept selectivity. Using a combination data from two Migration History Social Mobility surveys carried out among Turkish Moroccan men living in Belgium, selectivity is discussed with respect to region origin terms educational attainment. Analysis indicate that migrants Belgium were not all representative their countries origin. It was also noted...
This paper provides an overview of trends in mortality children aged under 5 and adults between the ages 15 60 sub-Saharan Africa, using data on survival siblings collected Demographic Health Surveys. If conspicuous stalls 1990s are disregarded, child levels have generally declined converged over last 30–40 years. In contrast, adult many East Southern African countries has increased markedly, echoing earlier increases incidence HIV. recent years, begun to decline once again some instances...
The Network for Analysing Longitudinal Population-based HIV/AIDS data on Africa (ALPHA Network, http://alpha.lshtm.ac.uk/) brings together ten population-based HIV surveillance sites in eastern and southern Africa, is coordinated by the London School of Hygiene Tropical Medicine (LSHTM).It was established 2005 aims to (i) broaden evidence base epidemiology informing policy, (ii) strengthen analytical capacity research, (iii) foster collaboration between network members.All study sites, some...
We review the relationship between polygyny and HIV identify a positive individual-level correlation, negative ecological correlation. subsequently examine two mechanisms that contribute to First, we find men in polygynous marriages have more extramarital sex than monogamous unions (both terms of self reports spousal suspicion adultery). Second, evidence adverse selection women into via an investigation marriage order status. conclude with reflections about possible explanations for distinct...
Awareness of and responses to HIV health risks stemming from relations between sexual partners have been well documented in sub‐Saharan Africa, but few studies estimated the effects observed status on marriage decisions outcomes. We study dissolution remarriage rural Malawi using longitudinal data with repeated marital measurements. Results indicate that HIV‐positive individuals face greater union (via both widowhood divorce) lower rates. Modeling suggest exclusion or partnership pools will...
Objective: To estimate the impact of antiretroviral therapy (ART) on population-wide adult life expectancy (LE). Study design:A population-based open cohort study with repeated HIV status measurements and registration vital events in south-western Uganda (1991Uganda ( -2012)).Methods: Non-parametric survival analysis techniques are used for estimating trends (i) LE general population (aged 15 above), (ii) by status, (iii) deficit associated HIV.The is estimated as difference between overall...
Abstract Introduction Surveillance of recent HIV infections in national testing services has the potential to inform primary prevention programming activities. Focusing on procedures required accurately determine infection, and for infection surveillance efforts, we present results three independent but linked pilots recency testing. Methods To distinguish recently acquired from long‐standing 2018 applied a Recent Infection Testing Algorithm that combined laboratory‐based Limiting Antigen...
Abstract Objectives In many low‐ and middle‐income countries, perinatal mortality estimates are derived retrospectively from periodically conducted household surveys. Mobile phone surveys offer advantages in terms of cost ease implementation. However, their suitability for monitoring has not been established. Methods We use data the Malawi Rapid Mortality Phone Survey (RaMMPS) to estimate rates two versions survey instrument: a full pregnancy history shorter truncated history. Female...
This paper evaluates the quality of data collected as part Kenya and Malawi Diffusion Ideational Change Projects, two longitudinal household surveys that examine role social networks in influencing attitudes behavior regarding
In Turkey and Morocco, as in most regions of the Muslim world, consanguineous or kin marriage is part a long-standing tradition matrimonial practices. As modernisation brings with it higher levels education, urbanisation an increasing geographical mobility, these practices are coming under pressure. Similarly, could be expected that support young people for marriages would decline through migration to Europe integration their host society. However, comparison prevalence immigrant communities...