Published on in Vol 13 (2026)

Preprints (earlier versions) of this paper are available at https://preprints.jmir.org/preprint/80631, first published .
Mode Effects Between Telephone and Web Interviews in the Post-COVID-19 Questionnaire Survey CoVerlauf: Exploratory Study

Mode Effects Between Telephone and Web Interviews in the Post-COVID-19 Questionnaire Survey CoVerlauf: Exploratory Study

Mode Effects Between Telephone and Web Interviews in the Post-COVID-19 Questionnaire Survey CoVerlauf: Exploratory Study

Paula Sofia Herrera-Espejel   1, 2 , MPP ;   Hermann Pohlabeln   3 , PhD ;   Lisa Kühne   4 , MSc ;   Stefan Rach   1, 2 , PhD

1 Department of Epidemiological Methods and Etiological Research, Leibniz Institute for Prevention Research and Epidemiology - BIPS, Bremen, Germany

2 Leibniz ScienceCampus Digital Public Health, Bremen, Germany

3 Department of Statistical Methods in Epidemiology, Leibniz Institute for Prevention Research and Epidemiology - BIPS, Bremen, Germany

4 SOCIUM Research Center on Inequality and Social Policy, Department of Health, Long-Term Care and Pensions, University of Bremen, Bremen, Germany

Corresponding Author:

  • Stefan Rach, PhD
  • Department of Epidemiological Methods and Etiological Research
  • Leibniz Institute for Prevention Research and Epidemiology - BIPS
  • Achterstr. 30
  • Bremen 28359
  • Germany
  • Phone: 49 (0)42121856 ext 841
  • Email: rach@leibniz-bips.de