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01.12.2015 | Original Article

Diverse recruitment strategies result in different participation percentages in a web-based study, but in similar compliance

verfasst von: Manas K. Akmatov, Nicole Rübsamen, Anja Schultze, Yvonne Kemmling, Nadia Obi, Kathrin Günther, Wolfgang Ahrens, Frank Pessler, Gérard Krause, Rafael T. Mikolajczyk

Erschienen in: International Journal of Public Health | Ausgabe 8/2015

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Abstract

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.

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Titel: Diverse recruitment strategies result in different participation percentages in a web-based study, but in similar compliance
verfasst von: Manas K. Akmatov
Nicole Rübsamen
Anja Schultze
Yvonne Kemmling
Nadia Obi
Kathrin Günther
Wolfgang Ahrens
Frank Pessler
Gérard Krause
Rafael T. Mikolajczyk
Publikationsdatum: 01.12.2015
Verlag: Springer International Publishing
Erschienen in: International Journal of Public Health / Ausgabe 8/2015
Print ISSN: 1661-8556
Elektronische ISSN: 1661-8564
DOI: https://doi.org/10.1007/s00038-015-0737-0

Springer Medizin

Abstract

Objectives

Methods

Results

Conclusions

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