van Wees, Daphne A.den Daas, ChantalKretzschmar, Mirjam E.E.Heijne, Janneke C.M.2020-08-142020-08-142019-06van Wees, D A, den Daas, C, Kretzschmar, M E E & Heijne, J C M 2019, 'Who drops out and when? Predictors of nonresponse and loss to follow-up in a longitudinal cohort study among STI clinic visitors', PloS ONE, vol. 14, no. 6, e0218658. https://doi.org/10.1371/journal.pone.02186581932-6203ORCID: /0000-0003-0955-3691/work/79063494https://hdl.handle.net/2164/14929Acknowledgments The authors would like to thank Joran Slager, who assisted with the data collection and contributed to the data analyses. Furthermore, the authors thank the staff at the STI clinics of Amsterdam, Kennemerland, Hollands Noorden, Twente, especially Karin Westra, Anne de Vries, Karlijn Kampman, and Titia Heijman, who were involved in the recruitment and data collection of participants at baseline. The authors are also grateful to Marlous Ratten and Klazien Visser from Soapoli-online, who coordinated the laboratory testing of the home-based test kits at six-month follow-up, and to the staff at the STI department at the National Institute for Public Health and the Environment, especially Birgit van Benthem.151068320engR Medicine (General)General Biochemistry,Genetics and Molecular BiologyGeneral Agricultural and Biological SciencesGeneralR1Journal article10.1371/journal.pone.0218658http://www.scopus.com/inward/record.url?scp=85067517391&partnerID=8YFLogxK146