International Journal of Public Health

, Volume 56, Issue 4, pp 407–417

Agreement between web-based and paper versions of a socio-demographic questionnaire in the NutriNet-Santé study

  • Anne-Claire Vergnaud
  • Mathilde Touvier
  • Caroline Méjean
  • Emmanuelle Kesse-Guyot
  • Clothilde Pollet
  • Aurélie Malon
  • Katia Castetbon
  • Serge Hercberg
Original Article

DOI: 10.1007/s00038-011-0257-5

Cite this article as:
Vergnaud, AC., Touvier, M., Méjean, C. et al. Int J Public Health (2011) 56: 407. doi:10.1007/s00038-011-0257-5

Abstract

Objectives

Web-based studies nowadays raise a major interest as they can improve all steps involved in observational studies. Our objective was to compare the web-based version of the NutriNet-Santé self-administered socio-demographic and economic questionnaire with the traditional paper version.

Methods

Both versions of the questionnaire were sent to 170 volunteers and filled in by 147 of them (either paper first, n = 76, or web-based first, n = 71). Agreement between versions was assessed by intraclass correlations (ICC) and kappas.

Results

Agreement between both versions was high, with ICC and kappas ranging between 0.81–1.00 and 0.76–1.00, respectively, similarly across groups of administration order, age, gender and self-estimated web knowledge in general. The web-based version was the one preferred by 93.7% of the subjects and enabled to avoid 553 missing values (2.00% of the total entries), 24 inconsistent data (0.09%), 8 aberrant data (0.03%), 472 data entry errors (0.85%) and to save 2,800 € (US $4,072) when sent to 170 subjects.

Conclusion

The web-based socio-demographic and economic questionnaire provided information of similar-to-superior quality compared to the traditional paper version, with substantial logistic and cost advantages.

Keywords

InternetSocio-economical statusEpidemiologyWeb-based questionnaire

Copyright information

© Swiss School of Public Health 2011

Authors and Affiliations

  • Anne-Claire Vergnaud
    • 1
  • Mathilde Touvier
    • 1
  • Caroline Méjean
    • 1
  • Emmanuelle Kesse-Guyot
    • 1
  • Clothilde Pollet
    • 1
  • Aurélie Malon
    • 1
  • Katia Castetbon
    • 2
  • Serge Hercberg
    • 1
    • 2
    • 3
  1. 1.Unité de Recherche en Epidémiologie Nutritionnelle (UREN), UMR U557 Inserm/U1125 Inra/Cnam/Paris 13, CRNH IdFSMBH Paris 13Bobigny CedexFrance
  2. 2.Unité de Surveillance et d’Epidémiologie Nutritionnelle (USEN), Institut de Veille SanitaireUniversité Paris 13Bobigny CedexFrance
  3. 3.Département de Santé PubliqueHôpital AvicenneBobigny CedexFrance