caa a22 4500 606222464 CHVBK 20210128101133.0 cr unu---uuuuu 210128e20151201xx s 000 0 eng 10.1007/s00038-015-0737-0 doi (NATIONALLICENCE)springer-10.1007/s00038-015-0737-0 Diverse recruitment strategies result in different participation percentages in a web-based study, but in similar compliance [Elektronische Daten] [Manas Akmatov, Nicole Rübsamen, Anja Schultze, Yvonne Kemmling, Nadia Obi, Kathrin Günther, Wolfgang Ahrens, Frank Pessler, Gérard Krause, Rafael Mikolajczyk] Objectives: We compared participation and compliance with a web-based data collection on infections among population-based samples recruited in different ways. Methods: Individuals were recruited from participants in the German National Cohort study (Group A, n=279) or persons who were invited to this study but did not participate (Group B, n=53). A third group was invited to the web-based study only (Group C, n=145). Results: Response varied among groups between 3% (B), 11% (C) and 61% (A), but compliance was similar (81-85%). Response did not differ by age and sex. Compliance was lower among the youngest and oldest participants. In addition, participants currently not employed were more likely to have better compliance. Semi-parametric group-based modelling identified three distinct compliance trajectories; "poor compliance” (8%), "improving compliance” (14%) and "very good compliance” (78%). Conclusions: Participation differed among modes of recruitment, but compliance was similar among groups and notably high. Different recruitment approaches can be used and collected data can be combined to achieve greater sample sizes for longitudinal web-based studies. Swiss School of Public Health (SSPH+), 2015 Response nationallicence Compliance nationallicence Recruitment strategies nationallicence Longitudinal study nationallicence Non-responders nationallicence Population-based study nationallicence Second-stage non-response nationallicence Web-based study nationallicence German National Cohort nationallicence Akmatov Manas Department of Epidemiology, Helmholtz Centre for Infection Research, Brunswick, Germany aut Rübsamen Nicole Department of Epidemiology, Helmholtz Centre for Infection Research, Brunswick, Germany aut Schultze Anja Department of Epidemiology, Helmholtz Centre for Infection Research, Brunswick, Germany aut Kemmling Yvonne Department of Epidemiology, Helmholtz Centre for Infection Research, Brunswick, Germany aut Obi Nadia University Cancer Center Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, Germany aut Günther Kathrin Department of Epidemiological Methods and Etiologic Research, Leibniz Institute for Prevention Research and Epidemiology-BIPS, Bremen, Germany aut Ahrens Wolfgang Department of Epidemiological Methods and Etiologic Research, Leibniz Institute for Prevention Research and Epidemiology-BIPS, Bremen, Germany aut Pessler Frank TWINCORE Centre for Experimental and Clinical Infection Research, Hannover, Germany aut Krause Gérard Department of Epidemiology, Helmholtz Centre for Infection Research, Brunswick, Germany aut Mikolajczyk Rafael Department of Epidemiology, Helmholtz Centre for Infection Research, Brunswick, Germany aut International Journal of Public Health Springer International Publishing 60/8(2015-12-01), 937-943 1661-8556 60:8<937 2015 60 38 https://doi.org/10.1007/s00038-015-0737-0 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00038-015-0737-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Akmatov Manas Department of Epidemiology, Helmholtz Centre for Infection Research, Brunswick, Germany aut NATIONALLICENCE 700 1- Rübsamen Nicole Department of Epidemiology, Helmholtz Centre for Infection Research, Brunswick, Germany aut NATIONALLICENCE 700 1- Schultze Anja Department of Epidemiology, Helmholtz Centre for Infection Research, Brunswick, Germany aut NATIONALLICENCE 700 1- Kemmling Yvonne Department of Epidemiology, Helmholtz Centre for Infection Research, Brunswick, Germany aut NATIONALLICENCE 700 1- Obi Nadia University Cancer Center Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, Germany aut NATIONALLICENCE 700 1- Günther Kathrin Department of Epidemiological Methods and Etiologic Research, Leibniz Institute for Prevention Research and Epidemiology-BIPS, Bremen, Germany aut NATIONALLICENCE 700 1- Ahrens Wolfgang Department of Epidemiological Methods and Etiologic Research, Leibniz Institute for Prevention Research and Epidemiology-BIPS, Bremen, Germany aut NATIONALLICENCE 700 1- Pessler Frank TWINCORE Centre for Experimental and Clinical Infection Research, Hannover, Germany aut NATIONALLICENCE 700 1- Krause Gérard Department of Epidemiology, Helmholtz Centre for Infection Research, Brunswick, Germany aut NATIONALLICENCE 700 1- Mikolajczyk Rafael Department of Epidemiology, Helmholtz Centre for Infection Research, Brunswick, Germany aut NATIONALLICENCE 773 0- International Journal of Public Health Springer International Publishing 60/8(2015-12-01), 937-943 1661-8556 60:8<937 2015 60 38