{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,26]],"date-time":"2025-11-26T04:30:40Z","timestamp":1764131440904,"version":"build-2065373602"},"reference-count":39,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2015,8,20]],"date-time":"2015-08-20T00:00:00Z","timestamp":1440028800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IJERPH"],"abstract":"<jats:p>Background: With the aim of targeting high-risk hidden heterosexual young people for Chlamydia trachomatis (CT) testing, an innovative web-based screening strategy using Respondent Driven Sampling (RDS) and home-based CT testing, was developed, piloted and evaluated. Methods: Two STI clinic nurses encouraged 37 CT positive heterosexual young people (aged 16\u201325 years), called index clients, to recruit peers from their social and sexual networks using the web-based screening strategy. Eligible peers (young, living in the study area) could request a home-based CT test and recruit other peers. Results: Twelve (40%) index clients recruited 35 peers. Two of these peers recruited other peers (n = 7). In total, 35 recruited peers were eligible for participation; ten of them (29%) requested a test and eight tested. Seven tested for the first time and one (13%) was positive. Most peers were female friends (80%). Nurses were positive about using the strategy. Conclusions: The screening strategy is feasible for targeting the hidden social network. However, uptake among men and recruitment of  sex-partners is low and RDS stopped early. Future studies are needed to explore the sustainability, cost-effectiveness, and impact of strategies that target people at risk who are not effectively reached by regular health care.<\/jats:p>","DOI":"10.3390\/ijerph120809889","type":"journal-article","created":{"date-parts":[[2015,8,20]],"date-time":"2015-08-20T10:16:28Z","timestamp":1440065788000},"page":"9889-9906","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":11,"title":["A Web\u2014Based Respondent Driven Sampling Pilot Targeting Young People at Risk for Chlamydia Trachomatis in Social and Sexual Networks with Testing: A Use Evaluation"],"prefix":"10.3390","volume":"12","author":[{"given":"Kevin","family":"Theunissen","sequence":"first","affiliation":[{"name":"Department of Sexual Health, Infectious Diseases and Environmental Health, South Limburg Public Health Services, 6160 HA, Geleen, The Netherlands"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Christian","family":"Hoebe","sequence":"additional","affiliation":[{"name":"Department of Sexual Health, Infectious Diseases and Environmental Health, South Limburg Public Health Services, 6160 HA, Geleen, The Netherlands"},{"name":"Department of Medical Microbiology, School for Public Health and Primary Care (CAPHRI), Maastricht University Medical Centre (MUMC+), 6202 AZ Maastricht, The Netherlands"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gerjo","family":"Kok","sequence":"additional","affiliation":[{"name":"Department of Work & Social Psychology, Maastricht University, 6200 MD Maastricht,  The Netherlands"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Rik","family":"Crutzen","sequence":"additional","affiliation":[{"name":"Department of Health Promotion, School for Public Health and Primary Care (CAPHRI), Maastricht University Medical Centre (MUMC), Maastricht 6202 AZ, The Netherlands"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chakib","family":"Kara-Za\u00eftri","sequence":"additional","affiliation":[{"name":"Faculty of Engineering and Informatics. University of Bradford, Bradford BD7 1DP, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Nanne","family":"De Vries","sequence":"additional","affiliation":[{"name":"Department of Health Promotion, School for Public Health and Primary Care (CAPHRI), Maastricht University Medical Centre (MUMC), Maastricht 6202 AZ, The Netherlands"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jan","family":"Van Bergen","sequence":"additional","affiliation":[{"name":"Centre for Infectious Disease Control, RIVM National Institute of Public Health and the Environment, Bilthoven 3720 BA, The Netherlands"},{"name":"STI AIDS Netherlands, Amsterdam 1016 GB, The Netherlands"},{"name":"Department of General Practice, AMC-University of Amsterdam, Amsterdam 1105 AZ,  The Netherlands"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Robert","family":"Hamilton","sequence":"additional","affiliation":[{"name":"In-Fact, Bradford BD17 7DB, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Marianne","family":"Sande","sequence":"additional","affiliation":[{"name":"Centre for Infectious Disease Control, RIVM National Institute of Public Health and the Environment, Bilthoven 3720 BA, The Netherlands"},{"name":"Julius Centre for Health Sciences and Primary Care, University Medical Centre Utrecht,  Utrecht 3508 GA, The Netherlands"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Nicole","family":"Dukers-Muijrers","sequence":"additional","affiliation":[{"name":"Department of Sexual Health, Infectious Diseases and Environmental Health, South Limburg Public Health Services, 6160 HA, Geleen, The Netherlands"},{"name":"Department of Medical Microbiology, School for Public Health and Primary Care (CAPHRI), Maastricht University Medical Centre (MUMC+), 6202 AZ Maastricht, The Netherlands"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2015,8,20]]},"reference":[{"key":"ref_1","unstructured":"European Centre for Disease Prevention and Control Available online: http:\/\/ecdc.europa.eu\/en\/publications\/Publications\/chlamydia-control-europe.pdf."},{"key":"ref_2","unstructured":"National Institute for Public Health and the Environment (2014). 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