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Respondent driven sampling

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https://www.readbyqxmd.com/read/28936431/syndemic-risk-classes-and-substance-use-problems-among-adults-in-high-risk-urban-areas-a-latent-class-analysis
#1
Charles M Cleland, Stephanie T Lanza, Sara A Vasilenko, Marya Gwadz
Substance use problems tend to co-occur with risk factors that are especially prevalent in urban communities with high rates of poverty. The present study draws on Syndemics Theory to understand profiles of risk and resilience and their associations with substance use problems in a population at risk for adverse outcomes. African-American/Black and Hispanic heterosexual adults (N = 2,853) were recruited by respondent-driven sampling from an urban area with elevated poverty rates, and completed a structured assessment battery covering sociodemographics, syndemic factors (that is, multiple, co-occurring risk factors), and substance use...
2017: Frontiers in Public Health
https://www.readbyqxmd.com/read/28935442/what-are-patient-navigators-doing-for-whom-and-where-a-national-survey-evaluating-the-types-of-services-provided-by-patient-navigators
#2
Kristen J Wells, Patricia Valverde, Amy E Ustjanauskas, Elizabeth A Calhoun, Betsy C Risendal
OBJECTIVE: A nationwide cross-sectional study was conducted to assess patient navigator, patient population, and work setting characteristics associated with performance of various patient navigation (PN) tasks. METHODS: Using respondent-driven sampling, 819 navigators completed a survey assessing frequency of providing 83 PN services, along with information about themselves, populations they serve, and setting in which they worked. Analyses of variance and Pearson correlations were conducted to determine differences and associations in frequency of PN services provided by various patient, navigator, and work setting characteristics...
August 31, 2017: Patient Education and Counseling
https://www.readbyqxmd.com/read/28927405/the-use-of-respondent-driven-sampling-to-assess-malaria-knowledge-treatment-seeking-behaviours-and-preventive-practices-among-mobile-and-migrant-populations-in-a-setting-of-artemisinin-resistance-in-western-cambodia
#3
Po Ly, Julie Thwing, Colleen McGinn, Cesia E Quintero, Narann Top-Samphor, Najibullah Habib, Jack S Richards, Sara E Canavati, Seshu Babu Vinjamuri, Chea Nguon
BACKGROUND: Multi-drug-resistant Plasmodium falciparum threatens malaria elimination efforts in Cambodia and the Greater Mekong Subregion (GMS). Malaria burden in the GMS is higher among certain high-risk demographic groups in Cambodia, especially among migrant and mobile populations (MMPs). This respondent driven sampling (RDS) study was conducted in order to determine malaria knowledge, treatment-seeking behaviours and preventive practices among two MMP groups in Western Cambodia. METHODS: An RDS survey of MMPs was implemented in four purposively-selected communes along the Thai-Cambodia border; two in Veal Veang District and two in Pailin Province, chosen due to their sizeable MMP groups, their convenience of access, and their proximity to Thailand, which allowed for comparison with RDS studies in Thailand...
September 19, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28923915/americans-misperceive-racial-economic-equality
#4
Michael W Kraus, Julian M Rucker, Jennifer A Richeson
The present research documents the widespread misperception of race-based economic equality in the United States. Across four studies (n = 1,377) sampling White and Black Americans from the top and bottom of the national income distribution, participants overestimated progress toward Black-White economic equality, largely driven by estimates of greater current equality than actually exists according to national statistics. Overestimates of current levels of racial economic equality, on average, outstripped reality by roughly 25% and were predicted by greater belief in a just world and social network racial diversity (among Black participants)...
September 18, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28923719/suicidal-ideation-and-behavior-in-institutions-of-higher-learning-a-latent-class-analysis
#5
Joel Bernanke, Hanga C Galfalvy, Maggie G Mortali, Laura A Hoffman, Christine Moutier, Charles B Nemeroff, Barbara H Stanley, Paula Clayton, Jill Harkavy-Friedman, Maria A Oquendo
Suicide is the second leading cause of death among undergraduate students, with an annual rate of 7.5 per 100,000. Suicidal behavior (SB) is complex and heterogeneous, which might be explained by there being multiple etiologies of SB. Data-driven identification of distinct at-risk subgroups among undergraduates would bolster this argument. We conducted a latent class analysis (LCA) on survey data from a large convenience sample of undergraduates to identify subgroups, and validated the resulting latent class model on a sample of graduate students...
September 9, 2017: Journal of Psychiatric Research
https://www.readbyqxmd.com/read/28912117/sample-size-calculations-for-population-size-estimation-studies-using-multiplier-methods-with-respondent-driven-sampling-surveys
#6
Elizabeth Fearon, Sungai T Chabata, Jennifer A Thompson, Frances M Cowan, James R Hargreaves
BACKGROUND: While guidance exists for obtaining population size estimates using multiplier methods with respondent-driven sampling surveys, we lack specific guidance for making sample size decisions. OBJECTIVE: To guide the design of multiplier method population size estimation studies using respondent-driven sampling surveys to reduce the random error around the estimate obtained. METHODS: The population size estimate is obtained by dividing the number of individuals receiving a service or the number of unique objects distributed (M) by the proportion of individuals in a representative survey who report receipt of the service or object (P)...
September 14, 2017: JMIR Public Health and Surveillance
https://www.readbyqxmd.com/read/28900764/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
#7
Lisa Johnston, Mara Steinhaus, Justine Sass, Patchara Benjarattanaporn, Petchsri Sirinirund, Taweesap Siraprapasiri, Robert Gass
This study used respondent-driven sampling to explore the effects of social support on HIV risk and protective factors among young males who have sex with males (YMSM) in Bangkok (N = 273) and Chiang Mai (N = 243), Thailand. It compared different measures of social support, including living situation, the proportion of family and friends to whom the respondent had disclosed their same-sex attraction, and scores on the multi-dimensional scale of perceived social support as predictors of two outcomes of interest-coerced first sex and HIV knowledge...
September 12, 2017: AIDS and Behavior
https://www.readbyqxmd.com/read/28882813/perceptions-of-health-related-information-on-facebook-cross-sectional-study-among-vietnamese-youths
#8
Melvyn Wb Zhang, Bach Xuan Tran, Huong Thi Le, Hinh Duc Nguyen, Cuong Tat Nguyen, Tho Dinh Tran, Carl A Latkin, Roger Cm Ho
BACKGROUND: While health information websites may have previously been the core source of information about health-related conditions on the Internet, social networking sites are increasingly replacing those websites as a source of health-related information. The increasingly popularity of social networking sites among the general population has consequential impact on health policies as well as health-related interventions. To date, there remains a paucity of research conducted in developing countries like Vietnam looking at the influence of social networking sites...
September 7, 2017: Interactive Journal of Medical Research
https://www.readbyqxmd.com/read/28880420/latent-risk-subtypes-based-on-injection-and-sexual-behavior-among-people-who-inject-drugs-in-rural-puerto-rico
#9
Dane Hautala, Roberto Abadie, Courtney Thrash, Juan Carlos Reyes, Kirk Dombrowski
BACKGROUND: People who inject drugs (PWID) in Puerto Rico engage in high levels of injection and sexual risk behavior, and they are at high risk for HIV and hepatitis C (HCV) infection, relative to their US counterparts. Less is known, however, about the clustering of risk behavior conducive to HIV and HCV infection among rural Puerto Rican communities. OBJECTIVES: The purpose of this study was to examine concurrent injection and sexual risk subtypes among a rural sample of PWID in Puerto Rico...
September 7, 2017: Journal of Rural Health
https://www.readbyqxmd.com/read/28873051/mental-health-of-transgender-people-in-hong-kong-a-community-driven-large-scale-quantitative-study-documenting-demographics-and-correlates-of-quality-of-life-and-suicidality
#10
Yiu Tung Suen, Randolph Chun Ho Chan, Miu Yin Eliz Wong
A community-driven survey of 106 transgender people (the first such survey in Hong Kong) showed that: (1) more than half the sample (50.9%) had a university degree or higher qualification; (2) despite this 43.4% had a monthly income below HK$6,000 (about USD$775); (3) 66% reported 'fair' or 'poor' quality of life; (4) 67% of the sample (87.1% of respondents aged 15-24 years) had contemplated suicide and (5) 20.8% of the sample (35.5% of respondents aged 15-24 years) had attempted suicide. It was found that (1) those who were single, had a lower monthly income and identified as transgender women reported lower quality of life; (2) those who were younger and on a lower income expressed higher suicidality...
September 5, 2017: Journal of Homosexuality
https://www.readbyqxmd.com/read/28862483/prep-chicago-a-randomized-controlled-peer-change-agent-intervention-to-promote-the-adoption-of-pre-exposure-prophylaxis-for-hiv-prevention-among-young-black-men-who-have-sex-with-men
#11
Lindsay E Young, Phil Schumm, Leigh Alon, Alida Bouris, Matthew Ferreira, Brandon Hill, Aditya S Khanna, Thomas W Valente, John A Schneider
BACKGROUND/AIMS: Advances in biomedical prevention strategies such as pre-exposure prophylaxis (PrEP) represent a new opportunity for reducing HIV incidence among young Black men who have sex with men, for whom the number of new HIV infections continues to rise. However, studies have documented low rates of PrEP uptake in this community. Research suggests that the peer networks of young Black men who have sex with men play important roles in their sexual health decisions. PrEP Chicago is a randomized controlled trial network intervention designed to increase PrEP uptake among young Black men who have sex with men living in Chicago...
September 1, 2017: Clinical Trials: Journal of the Society for Clinical Trials
https://www.readbyqxmd.com/read/28847057/-three-level-logistic-analysis-related-to-influencing-factors-on-condom-use-among-female-sex-workers-aged-35-years-and-above-in-qingdao
#12
C X Zhang, Y Q Xu, Y F Li, Z X Jiang, X J Zhang, N Zhang, X F Li, B F Jiang
Objective: To analyze the influencing factors on condom use among 35-years-or-older female sex workers (OFSWs) in Qingdao by using the three-level logistic model. Methods: From March to June 2014, OFSWs were recruited in Qingdao, using respondent-driven sampling. Related information on OFSWs and their recent five sexual partners (not including husband) were obtained by conducting a questionnaire survey on OFSWs. A Three-level logistic regression model was conducted to analyze the influencing factors of condom use between OFSWs and their sexual partners...
August 10, 2017: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/28845320/transactional-sex-between-men-and-its-implications-on-hiv-and-sexually-transmitted-infections-in-nigeria
#13
Eniola A Bamgboye, Titilope Badru, Afolabi Bamgboye
INTRODUCTION: Men who have transactional sex with men (MTSM) are known to be at higher risk for HIV and sexually transmitted infections (STIs). This study explored the risk factors associated with STI symptoms and HIV prevalence among men who have transactional sex with men in Nigeria. METHODS: In 2014, a cross-sectional study, using respondent driven sampling technique, was carried out to recruit 3,172 MSM across eight states in Nigeria. Relevant information on sociodemographic characteristics, sexual behaviors, and self-reported symptoms of STI was obtained...
2017: Journal of Sexually Transmitted Diseases
https://www.readbyqxmd.com/read/28844014/changes-in-smoking-status-among-a-longitudinal-cohort-of-gay-bisexual-and-other-men-who-have-sex-with-men-in-vancouver-canada
#14
Helia Shariati, Heather L Armstrong, Zishan Cui, Nathan J Lachowsky, Julia Zhu, Praney Anand, Eric A Roth, Robert S Hogg, Greg Oudman, Christina Tonella, David M Moore
BACKGROUND: Cigarette smoking is common among gay, bisexual, and other men who have sex with men (GBMSM) and most of the mortality gap between HIV-positive and HIV-negative individuals is attributable to smoking. METHODS: We recruited sexually active HIV-positive and HIV-negative GBMSM age ≥16 years using respondent-driven sampling. Study visits occurred every six months for up to four years and included a computer-assisted self-interview and clinical assessment...
August 16, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28832587/social-venue-range-and-referral-chain-impact-implications-for-the-sampling-of-hidden-communities
#15
Benjamin Cornwell, John A Schneider
BACKGROUND: It has been argued that the success of respondent-driven sampling (RDS) in generating unbiased estimates for epidemiologic outcomes depends on participants' abilities to generate long referral chains. While this is thought to depend on the number of people participants know in the target population, this idea is rarely tested. Furthermore, little attention has been paid to the role of other aspects of social connectedness in recruitment, such as participants' involvement in local clubs and venues...
2017: PloS One
https://www.readbyqxmd.com/read/28832286/intersections-between-polyvictimisation-and-mental-health-among-adolescents-in-five-urban-disadvantaged-settings-the-role-of-gender
#16
Mphatso Kamndaya, Pedro T Pisa, Matthew F Chersich, Michele R Decker, Adesola Olumide, Rajib Acharya, Yan Cheng, Heena Brahmbhatt, Sinead Delany-Moretlwe
BACKGROUND: Polyvictimisation (PV) - exposure to violence across multiple contexts - causes considerable morbidity and mortality among adolescents. Despite high levels of violence in urban disadvantaged settings, gender differences in associations between PV and mental health have not been well established. METHODS: We analysed data from a survey with 2393 adolescents aged 15-19 years, recruited using respondent-driven sampling from urban disadvantaged settings in Baltimore (USA), Delhi (India), Ibadan (Nigeria), Johannesburg (South Africa) and Shanghai (China)...
July 4, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28829831/no-significant-htlv-seroprevalence-in-german-people-who-inject-drugs
#17
Oliver Hohn, Stephen Norley, Claudia Kücherer, Ali Bazarbachi, Hiba El Hajj, Ulrich Marcus, Ruth Zimmermann, Norbert Bannert
BACKGROUND: Although human T-lymphotropic virus (HTLV) is transmitted via the same routes as human immunodeficiency virus (HIV), its worldwide seroprevalence differs drastically because HTLV is transmitted mainly via infected cells rather than free virus. The sharing of needles and other equipment places people who inject drugs (PWID) at particularly high-risk for such blood-borne diseases. METHODS: To validate the methodology used to process and analyze the dried blood spots (DBS) utilized in the study, dried serum spots (DSS) with dilutions of sera from known HTLV infected individuals were analyzed by ELISA and Western blot...
2017: PloS One
https://www.readbyqxmd.com/read/28828738/can-burt-s-theory-of-structural-holes-be-applied-to-study-social-support-among-mid-age-female-sex-workers-a-multi-site-egocentric-network-study-in-china
#18
Hongjie Liu
The epidemic of HIV/AIDS continues to spread among older adults and mid-age female sex workers (FSWs) over 35 years old. We used egocentric network data collected from three study sites in China to examine the applicability of Burt's Theory of Social Holes to study social support among mid-age FSWs. Using respondent-driven sampling, 1245 eligible mid-age FSWs were interviewed. Network structural holes were measured by network constraint and effective size. Three types of social networks were identified: family networks, workplace networks, and non-FSW networks...
August 21, 2017: AIDS and Behavior
https://www.readbyqxmd.com/read/28810838/violence-and-depression-among-men-who-have-sex-with-men-in-tanzania
#19
Lucy R Mgopa, Jessie Mbwambo, Samuel Likindikoki, Pedro Pallangyo
BACKGROUND: Men who have sex with men (MSM) continue to be at an increased risk of Violence, HIV transmission and Mental Disorders such as depression on top of many other bio-psycho-socio challenges they face as a result of their sexual orientation. METHODS: We recruited 345 MSM using a respondent driven sampling technique. Revised Conflict Tactic Scale, PHQ-9 and questions adapted from the TDHS 2010 were used to assess for violence, depression and HIV-risk behaviors respectively...
August 15, 2017: BMC Psychiatry
https://www.readbyqxmd.com/read/28809774/high-prevalence-of-concurrent-male-male-partnerships-in-the-context-of-low-human-immunodeficiency-virus-testing-among-men-who-have-sex-with-men-in-bamako-mali
#20
Avi Hakim, Padmaja Patnaik, Nouhoum Telly, Tako Ballo, Bouyagui Traore, Seydou Doumbia, Maria Lahuerta
BACKGROUND: Concurrent male-male sexual partnerships have been understudied in sub-Saharan Africa and are especially important because human immunodeficiency virus (HIV) prevalence and acquisition probability are higher among men who have sex with men (MSM) than among heterosexual men and women. METHODS: We conducted a respondent-driven sampling survey of 552 men who have sex with men in Bamako, Mali from October 2014 to February 2015. Eligibility criteria included 18 years or older, history of oral or anal sex with another man in the last 6 months, residence in or around Bamako in the last 6 months, ability to communicate in French...
September 2017: Sexually Transmitted Diseases
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