Lisa G Johnston

• HIV and Syphilis Prevalence, Trends and Factors Affecting HIV Testing Among Female Sex Workers in Morocco

  Open Access•Lisa G Johnston, Gauri Phatak et al.•ARTICLE•AIDS and Behavior•2025

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• Characterization of Vulnerability of Internally Displaced Persons in Burkina Faso, Mali, and Niger Using Respondent-Driven Sampling (RDS)

  Open Access•Phuong Pham, Lisa Johnston et al.•ARTICLE•Journal of Refugee Studies•2023•Citada por: 1•Referências: 3

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  The Central Sahel region has one of the world's fastest-growing populations of internally displaced persons (IDPs). To better understand the risk factors associated with displacement, this study utilized respondent-driven sampling to recruit otherwise hard-to-reach IDPs in remote and urban areas in Burkina Faso, Mali, and Niger. From August to October 2021, 4144 IDPs were surveyed, and nine targeted vulnerability profiles were measured across the…

• Alarmingly High HIV Prevalence Among Adolescent and Young Men Who have Sex with Men (MSM) in Urban Indonesia

  Open Access•Lisa G Johnston, Phyumar Soe et al.•ARTICLE•AIDS and Behavior•2021

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  Indonesia's HIV epidemic is concentrated among key populations. While prevalence among men who have sex with men (MSM) is high, transmission among young MSM (15-24-years-old) remains poorly understood. We conducted a respondent driven sampling survey of 211 young MSM in urban Bandung, Indonesia in 2018-2019 to estimate HIV prevalence and associated risk factors. Thirty percent of young MSM were HIV antibody positive. This is nearly 100-fold great…

• HIV prevalence among men who have sex with men in Brazil

  Open Access•Ligia Regina Sansigolo Kerr, Ligia Kerr et al.•ARTICLE•Medicine•2018

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  This paper reports human immuno-deficiency virus (HIV) prevalence in the 2nd National Biological and Behavioral Surveillance Survey (BBSS) among men who have sex with men (MSM) in 12 cities in Brazil using respondent-driven sampling (RDS).Following formative research, RDS was applied in 12 cities in the 5 macroregions of Brazil between June and December 2016 to recruit MSM for BBSS. The target sample size was 350 per city. Five to 6 seeds were in…

• Prevalence of HIV and other infections and injection behaviours among people who inject drugs in Addis Ababa, Ethiopia

  Minilik Demissie, Lisa G Johnston et al.•ARTICLE•African Journal of AIDS Research•2018

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  Even though the prevalence of HIV among drug users is not much higher than in the general population in Addis Ababa, the needle sharing prevalence was high. Thus, this baseline study shows the need to establish harm reduction programmes and prevention strategies for the PWID in Addis Ababa

• Estimating the Population Size of Males Who Inject Drugs in Myanmar

  Open Access•Lisa G Johnston, Phyumar Soe et al.•ARTICLE•AIDS and Behavior•2018

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• The Associations of Perceived Social Support with Key HIV Risk and Protective Factors Among Young Males Who Have Sex with Males in Bangkok and Chiang Mai, Thailand

  Open Access•Lisa G Johnston, Mara Steinhaus et al.•ARTICLE•AIDS and Behavior•2017

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• Correlates of Forced Sex Among Young Men Who Have Sex With Men in Yangon and Monywa, Myanmar

  Open Access•Lisa G Johnston, Myo Myo Mon et al.•ARTICLE•Archives of Sexual Behavior•2017•Citada por: 1•Referências: 40

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• Associations of HIV Testing, Sexual Risk and Access to Prevention Among Female Sex Workers in the Dominican Republic

  Open Access•Lisa G Johnston, Luis Bonilla et al.•ARTICLE•AIDS and Behavior•2016

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• Recent HIV Testing Among Young Men Who Have Sex with Men in Bangkok and Chiang Mai

  Open Access•Lisa G Johnston, Mara Steinhaus et al.•ARTICLE•AIDS and Behavior•2016

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• Diagnostics for Respondent-Driven Sampling

  Open Access•Krista J Gile, Lisa G Johnston et al.•ARTICLE•Journal of the Royal Statistical…•2015

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  Respondent-driven sampling (RDS) is a widely used method for sampling from hard-to-reach human populations, especially populations at higher risk for human immunodeficiency virus or acquired immune deficiency syndrome. Data are collected through a peer referral process over social networks. RDS has proven practical for data collection in many difficult settings and has been adopted by leading public health organizations around the world. Unfortun…

• Sex Differences in HIV Prevalence, Behavioral Risks and Prevention Needs Among Anglophone and Francophone Sub-Saharan African Migrants Living in Rabat, Morocco

  Open Access•Lisa G Johnston, Hicham Oumzil et al.•ARTICLE•AIDS and Behavior•2015

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• Sampling Males Who Inject Drugs in Haiphong, Vietnam

  Open Access•Hoang Vu Tran, Linh‐Vi Le et al.•ARTICLE•Journal of Urban Health•2015•Citada por: 1•Referências: 4

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• Chlamydia Prevalence and Associated Behaviours Among Female Sex Workers in Vanuatu

  Open Access•Caroline van Gemert, Mark Stoovè et al.•ARTICLE•AIDS and Behavior•2014

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• High HIV and HCV and the unmet needs of people who inject drugs in Yerevan, Armenia

  Open Access•Lisa G Johnston, Samvel Grigoryan et al.•ARTICLE•International Journal of Drug…•2014

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• Respondent Driven Sampling for HIV Biological and Behavioral Surveillance in Latin America and the Caribbean

  Open Access•Jane R Montealegre, Lisa G Johnston et al.•ARTICLE•AIDS and Behavior•2013

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• An Empirical Examination of Respondent Driven Sampling Design Effects Among HIV Risk Groups from Studies Conducted Around the World

  Open Access•Lisa G Johnston, Yea-Hung Chen et al.•ARTICLE•AIDS and Behavior•2013

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• Determinants of HIV Infection Among Female Sex Workers in Two Cities in the Republic of Moldova

  Open Access•Lev Zohrabyan, Lisa G Johnston et al.•ARTICLE•AIDS and Behavior•2013

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  In 2009-2010, females who reported having vaginal, anal or oral sex in exchange for money in the previous year, ≥16 years, and living in either Chisinau (n = 299) or Balti (n = 359), Moldova, were recruited into a respondent driven sampling survey. One fifth reported ever injecting drugs and over 30 % ever had sexual intercourse with men who inject drugs. In both cities, condom use with permanent and casual partners was much lower than condom use…

• Evaluation of Respondent-driven Sampling

  Nicky McCreesh, Simon D W Frost et al.•ARTICLE•Epidemiology•2012

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  BACKGROUND: Respondent-driven sampling is a novel variant of link-tracing sampling for estimating the characteristics of hard-to-reach groups, such as HIV prevalence in sex workers. Despite its use by leading health organizations, the performance of this method in realistic situations is still largely unknown. We evaluated respondent-driven sampling by comparing estimates from a respondent-driven sampling survey with total population data. METHOD…

• Unexpectedly High Injection Drug Use, HIV and Hepatitis C Prevalence Among Female Sex Workers in the Republic of Mauritius

  Open Access•Lisa G Johnston, Sewraz Corceal•ARTICLE•AIDS and Behavior•2012

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• High HIV and hepatitis C prevalence amongst injecting drug users in Mauritius

  Open Access•Lisa G Johnston, Ahmed Saumtally et al.•ARTICLE•International Journal of Drug…•2011

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• Taking Care of Business

  Open Access•Loraine Townsend, Anders Ragnarsson et al.•ARTICLE•Qualitative Health Research•2011•Citada por: 4•Referências: 33

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  In this article we examine the dynamics of social relationships in which alcohol use and risky sexual behaviors cooccur. As part of a larger biological and behavioral HIV surveillance survey, 20 men who lived in an urban, informal settlement on the outskirts of Cape Town, South Africa participated in in-depth interviews. Interview transcripts were analyzed according to a latent content analysis. Findings highlight the latent association between a…

• Formative research to optimize respondent-driven sampling surveys among hard-to-reach populations in HIV behavioral and biological surveillance

  Lisa G Johnston, Sara Whitehead et al.•ARTICLE•AIDS Care•2010

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  Respondent-driven sampling (RDS) is widely adopted as a method to assess HIV and other sexually transmitted infection prevalence and risk factors among hard-to-reach populations. Failures to properly implement RDS in several settings could potentially have been avoided, had formative research been conducted. However, to date there is no published literature addressing the use of formative research in preparing for RDS studies. This paper uses exa…

• Correlates of HIV Risk Among Injecting Drug Users in Sixteen Ukrainian Cities

  Open Access•Yuriy S Taran, Lisa G Johnston et al.•ARTICLE•AIDS and Behavior•2010

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• HIV Risk Behaviours and their Relationship to Intimate Partner Violence (IPV) Among Men Who Have Multiple Female Sexual Partners in Cape Town, South Africa

  Open Access•Loraine Townsend, Rachel Jewkes et al.•ARTICLE•AIDS and Behavior•2010

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• Methods to Recruit Hard-to-Reach Groups

  Open Access•Lucy Platt, Melanie Wall et al.•ARTICLE•Journal of Urban Health•2006•Citada por: 21•Referências: 2

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  Evidence suggests rapid diffusion of injecting drug use and associated outbreaks of HIV among injecting drug users (IDUs) in the Russian Federation and Eastern Europe. There remains a need for research among non-treatment and community-recruited samples of IDUs to better estimate the dynamics of HIV transmission and to improve treatment and health services access. We compare two sampling methodologies "respondent-driven sampling" (RDS) and chain …

• Assessment of Respondent Driven Sampling for Recruiting Female Sex Workers in Two Vietnamese Cities

  Open Access•Lisa G Johnston, Keith Sabin et al.•ARTICLE•Journal of Urban Health•2006•Citada por: 19•Referências: 3

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  Respondent driven sampling (RDS) is a relatively new method to sample hard-to-reach populations. Until this study, female sex workers (FSWs) in Vietnam were sampled using a variety of methods, including time location sampling (TLS), which may not access the more hidden types of FSWs. This paper presents an analysis from an HIV biological and behavioral surveillance survey to assess the feasibility and effectiveness of RDS to sample FSWs, to deter…

• Exploring Barriers to ‘Respondent Driven Sampling’ in Sex Worker and Drug-Injecting Sex Worker Populations in Eastern Europe

  Open Access•Milena Simić, Lisa G Johnston et al.•ARTICLE•Journal of Urban Health•2006•Citada por: 13•Referências: 3

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  Respondent driven sampling (RDS) has been used in several counties to sample injecting drug users, sex workers (SWs) and men who have sex with men and as a means of collecting behavioural and biological health data. We report on the use of RDS in three separate studies conducted among SWs between 2004 and 2005 in the Russian Federation, Serbia, and Montenegro. Findings suggest that there are limitations associated with the use of RDS in SW popula…

• Sampling Hard-to-Reach Populations with Respondent Driven Sampling

  Open Access•Lisa G Johnston, Keith Sabin•ARTICLE•Methodological Innovations Online•2010•Citada por: 8•Referências: 15

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  Cost effective and targeted prevention, intervention and treatment programs for hard-to-reach populations at risk for HIV and other infections rely on the collection of quality data through biological and behavioral surveillance surveys (BBSS). Over the past decade, there has been a global expansion of BBSS to measure the prevalence of HIV and other infections, and related risk behaviors among injecting drug users, males who have sex with males, …

• Échantillonnage déterminé selon les répondants pour les populations difficiles à joindre

  Open Access•Lisa G Johnston, Keith Sabin•ARTICLE•Methodological Innovations Online•2010•Citada por: 6•Referências: 14

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  La mise en place de programmes ciblés et aux coûts maîtrisés de prévention, d'intervention et de traitement des populations difficiles à joindre à risque d'infection par le VIH ou d'autres infections repose sur la collecte de données de qualité au moyen d'enquêtes de surveillance comportementale et biologique (ESCOMB). Au cours des dix dernières années, les ESCOMB visant à mesurer la prévalence du VIH et d'autres infections, des comportements à r…

• Evaluating Recruitment among Female Sex Workers and Injecting Drug Users at Risk for HIV Using Respondent-driven Sampling in Estonia

  Open Access•Anneli Uusküla, Lisa G Johnston et al.•ARTICLE•Journal of Urban Health•2010•Citada por: 5•Referências: 2

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• Taking Care of Business

  Open Access•Loraine Townsend, Anders Ragnarsson et al.•ARTICLE•Qualitative Health Research•2011•Citada por: 4•Referências: 33

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  In this article we examine the dynamics of social relationships in which alcohol use and risky sexual behaviors cooccur. As part of a larger biological and behavioral HIV surveillance survey, 20 men who lived in an urban, informal settlement on the outskirts of Cape Town, South Africa participated in in-depth interviews. Interview transcripts were analyzed according to a latent content analysis. Findings highlight the latent association between a…

• Respondent-driven sampling

  Lisa G Johnston, Tonya R Thurman et al.•ARTICLE•Vulnerable Children and Youth…•2010•Citada por: 2•Referências: 9

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  Sampling methods to study street children often rely on convenience approaches. Respondent-driven sampling (RDS) is a relatively new methodology for sampling hard-to-reach populations utilizing peer-driven recruitment. It includes both field and analytical procedures to account for non-random recruitment patterns and generates statistically valid samples. This article describes RDS and assesses its effectiveness to recruit a diverse sample of str…

• Characterization of Vulnerability of Internally Displaced Persons in Burkina Faso, Mali, and Niger Using Respondent-Driven Sampling (RDS)

  Open Access•Phuong Pham, Lisa Johnston et al.•ARTICLE•Journal of Refugee Studies•2023•Citada por: 1•Referências: 3

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  The Central Sahel region has one of the world's fastest-growing populations of internally displaced persons (IDPs). To better understand the risk factors associated with displacement, this study utilized respondent-driven sampling to recruit otherwise hard-to-reach IDPs in remote and urban areas in Burkina Faso, Mali, and Niger. From August to October 2021, 4144 IDPs were surveyed, and nine targeted vulnerability profiles were measured across the…

• Correlates of Forced Sex Among Young Men Who Have Sex With Men in Yangon and Monywa, Myanmar

  Open Access•Lisa G Johnston, Myo Myo Mon et al.•ARTICLE•Archives of Sexual Behavior•2017•Citada por: 1•Referências: 40

  Incluir item

• Sampling Males Who Inject Drugs in Haiphong, Vietnam

  Open Access•Hoang Vu Tran, Linh‐Vi Le et al.•ARTICLE•Journal of Urban Health•2015•Citada por: 1•Referências: 4

  Incluir item

• Assessment of Respondent Driven Sampling for Recruiting Female Sex Workers in Two Vietnamese Cities

  Open Access•Lisa G Johnston, Keith Sabin et al.•ARTICLE•Journal of Urban Health•2006•Citada por: 19•Referências: 3

  Incluir item

  Respondent driven sampling (RDS) is a relatively new method to sample hard-to-reach populations. Until this study, female sex workers (FSWs) in Vietnam were sampled using a variety of methods, including time location sampling (TLS), which may not access the more hidden types of FSWs. This paper presents an analysis from an HIV biological and behavioral surveillance survey to assess the feasibility and effectiveness of RDS to sample FSWs, to deter…

• Methods to Recruit Hard-to-Reach Groups

  Open Access•Lucy Platt, Melanie Wall et al.•ARTICLE•Journal of Urban Health•2006•Citada por: 21•Referências: 2

  Incluir item

  Evidence suggests rapid diffusion of injecting drug use and associated outbreaks of HIV among injecting drug users (IDUs) in the Russian Federation and Eastern Europe. There remains a need for research among non-treatment and community-recruited samples of IDUs to better estimate the dynamics of HIV transmission and to improve treatment and health services access. We compare two sampling methodologies "respondent-driven sampling" (RDS) and chain …

• Exploring Barriers to ‘Respondent Driven Sampling’ in Sex Worker and Drug-Injecting Sex Worker Populations in Eastern Europe

  Open Access•Milena Simić, Lisa G Johnston et al.•ARTICLE•Journal of Urban Health•2006•Citada por: 13•Referências: 3

  Incluir item

  Respondent driven sampling (RDS) has been used in several counties to sample injecting drug users, sex workers (SWs) and men who have sex with men and as a means of collecting behavioural and biological health data. We report on the use of RDS in three separate studies conducted among SWs between 2004 and 2005 in the Russian Federation, Serbia, and Montenegro. Findings suggest that there are limitations associated with the use of RDS in SW popula…

• The Effectiveness of Respondent Driven Sampling for Recruiting Males Who have Sex with Males in Dhaka, Bangladesh

  Open Access•Lisa G Johnston, Rasheda Khanam et al.•ARTICLE•AIDS and Behavior•2007

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• Implementation Challenges to Using Respondent-Driven Sampling Methodology for HIV Biological and Behavioral Surveillance

  Open Access•Lisa G Johnston, Mohsen Malekinejad et al.•ARTICLE•AIDS and Behavior•2008

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• The Associations of Voluntary Counseling and Testing Acceptance and the Perceived Likelihood of Being HIV-Infected Among Men with Multiple Sex Partners in a South African Township

  Open Access•Lisa G Johnston, Heidi O’Bra et al.•ARTICLE•AIDS and Behavior•2008

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• Implementation Challenges to Using Respondent-Driven Sampling Methodology for HIV Biological and Behavioral Surveillance

  Open Access•Lisa G Johnston, Mohsen Malekinejad et al.•ARTICLE•AIDS and Behavior•2008

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• An Empirical Comparison of Respondent-driven Sampling, Time Location Sampling, and Snowball Sampling for Behavioral Surveillance in Men Who Have Sex with Men, Fortaleza, Brazil

  Open Access•C Kendall, Ligia Regina Sansigolo Kerr et al.•ARTICLE•AIDS and Behavior•2008

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• Prevalence of Sexually Transmitted Infections Among Men Who Have Sex with Men in Zagreb, Croatia

  Open Access•Ivana Božičević, Oktavija Dakovic Rode et al.•ARTICLE•AIDS and Behavior•2008

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• Efficacy of convenience sampling through the internet versus respondent driven sampling among males who have sex with males in Tallinn and Harju County, Estonia

  Lisa G Johnston, Aire Trummal et al.•ARTICLE•AIDS Care•2009

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  This paper examines challenges obtaining representative samples of males who have sex with males (MSM) in Estonia and provides descriptive HIV behavioral data gathered from four cross-sectional surveys; three using the internet, and one using respondent driven sampling (RDS) to recruit MSM in Tallinn and Harju County. Estonian MSM were sampled between March and May in 2004 (n=193), August and November in 2005 (n=146) and September and December in…

• HIV and Related Risk Behavior Among Men Who Have Sex with Men in Zanzibar, Tanzania

  Open Access•Mohammed Dahoma, Lisa G Johnston et al.•ARTICLE•AIDS and Behavior•2009

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• Formative research to optimize respondent-driven sampling surveys among hard-to-reach populations in HIV behavioral and biological surveillance

  Lisa G Johnston, Sara Whitehead et al.•ARTICLE•AIDS Care•2010

  Incluir item

  Respondent-driven sampling (RDS) is widely adopted as a method to assess HIV and other sexually transmitted infection prevalence and risk factors among hard-to-reach populations. Failures to properly implement RDS in several settings could potentially have been avoided, had formative research been conducted. However, to date there is no published literature addressing the use of formative research in preparing for RDS studies. This paper uses exa…

• Correlates of HIV Risk Among Injecting Drug Users in Sixteen Ukrainian Cities

  Open Access•Yuriy S Taran, Lisa G Johnston et al.•ARTICLE•AIDS and Behavior•2010

  Incluir item

• HIV Risk Behaviours and their Relationship to Intimate Partner Violence (IPV) Among Men Who Have Multiple Female Sexual Partners in Cape Town, South Africa

  Open Access•Loraine Townsend, Rachel Jewkes et al.•ARTICLE•AIDS and Behavior•2010

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• Effectiveness of Respondent-Driven Sampling to Recruit High Risk Heterosexual Men Who Have Multiple Female Sexual Partners

  Open Access•Loraine Townsend, Lisa G Johnston et al.•ARTICLE•AIDS and Behavior•2010

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• HIV risk and the overlap of injecting drug use and high-risk sexual behaviours among men who have sex with men in Zanzibar (Unguja), Tanzania

  Open Access•Lisa G Johnston, Abigail Holman et al.•ARTICLE•International Journal of Drug…•2010

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• Respondent-driven sampling

  Lisa G Johnston, Tonya R Thurman et al.•ARTICLE•Vulnerable Children and Youth…•2010•Citada por: 2•Referências: 9

  Incluir item

  Sampling methods to study street children often rely on convenience approaches. Respondent-driven sampling (RDS) is a relatively new methodology for sampling hard-to-reach populations utilizing peer-driven recruitment. It includes both field and analytical procedures to account for non-random recruitment patterns and generates statistically valid samples. This article describes RDS and assesses its effectiveness to recruit a diverse sample of str…

• Evaluating Recruitment among Female Sex Workers and Injecting Drug Users at Risk for HIV Using Respondent-driven Sampling in Estonia

  Open Access•Anneli Uusküla, Lisa G Johnston et al.•ARTICLE•Journal of Urban Health•2010•Citada por: 5•Referências: 2

  Incluir item

• Sampling Hard-to-Reach Populations with Respondent Driven Sampling

  Open Access•Lisa G Johnston, Keith Sabin•ARTICLE•Methodological Innovations Online•2010•Citada por: 8•Referências: 15

  Incluir item

  Cost effective and targeted prevention, intervention and treatment programs for hard-to-reach populations at risk for HIV and other infections rely on the collection of quality data through biological and behavioral surveillance surveys (BBSS). Over the past decade, there has been a global expansion of BBSS to measure the prevalence of HIV and other infections, and related risk behaviors among injecting drug users, males who have sex with males, …

• Échantillonnage déterminé selon les répondants pour les populations difficiles à joindre

  Open Access•Lisa G Johnston, Keith Sabin•ARTICLE•Methodological Innovations Online•2010•Citada por: 6•Referências: 14

  Incluir item

  La mise en place de programmes ciblés et aux coûts maîtrisés de prévention, d'intervention et de traitement des populations difficiles à joindre à risque d'infection par le VIH ou d'autres infections repose sur la collecte de données de qualité au moyen d'enquêtes de surveillance comportementale et biologique (ESCOMB). Au cours des dix dernières années, les ESCOMB visant à mesurer la prévalence du VIH et d'autres infections, des comportements à r…

• High HIV and hepatitis C prevalence amongst injecting drug users in Mauritius

  Open Access•Lisa G Johnston, Ahmed Saumtally et al.•ARTICLE•International Journal of Drug…•2011

  Incluir item

• Taking Care of Business

  Open Access•Loraine Townsend, Anders Ragnarsson et al.•ARTICLE•Qualitative Health Research•2011•Citada por: 4•Referências: 33

  Incluir item

  In this article we examine the dynamics of social relationships in which alcohol use and risky sexual behaviors cooccur. As part of a larger biological and behavioral HIV surveillance survey, 20 men who lived in an urban, informal settlement on the outskirts of Cape Town, South Africa participated in in-depth interviews. Interview transcripts were analyzed according to a latent content analysis. Findings highlight the latent association between a…

• Evaluation of Respondent-driven Sampling

  Nicky McCreesh, Simon D W Frost et al.•ARTICLE•Epidemiology•2012

  Incluir item

  BACKGROUND: Respondent-driven sampling is a novel variant of link-tracing sampling for estimating the characteristics of hard-to-reach groups, such as HIV prevalence in sex workers. Despite its use by leading health organizations, the performance of this method in realistic situations is still largely unknown. We evaluated respondent-driven sampling by comparing estimates from a respondent-driven sampling survey with total population data. METHOD…

• Unexpectedly High Injection Drug Use, HIV and Hepatitis C Prevalence Among Female Sex Workers in the Republic of Mauritius

  Open Access•Lisa G Johnston, Sewraz Corceal•ARTICLE•AIDS and Behavior•2012

  Incluir item

• Respondent Driven Sampling for HIV Biological and Behavioral Surveillance in Latin America and the Caribbean

  Open Access•Jane R Montealegre, Lisa G Johnston et al.•ARTICLE•AIDS and Behavior•2013

  Incluir item

HIV, Drug Use, Sexual Risk (40 obras) · Medicine (37 obras) · HIV/AIDS Research and Interventions (36 obras) · Demography (35 obras) · Demography (31 obras) · Environmental health (28 obras) · Human immunodeficiency virus (HIV (28 obras) · Respondent (28 obras) · Sex work and related issues (25 obras) · Population (23 obras)