Electronic reminders did not improve postal questionnaire response rates or response times: a randomized controlled trial

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Man, Mei-See, Tilbrook, Helen E., Jayakody, Shalmini, Hewitt, Catherine E., Cox, Helen, Cross, Ben and Torgerson, David J. (2011) Electronic reminders did not improve postal questionnaire response rates or response times: a randomized controlled trial. Journal of Clinical Epidemiology, 64 (9). pp. 1001-1004. ISSN 0895-4356

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Abstract

OBJECTIVE: We aim to evaluate the effectiveness of electronic reminders (ERs) to improve the response rates and time to response of postal questionnaires in a health research setting. STUDY DESIGN AND SETTING: This pragmatic randomized controlled trial (RCT) was nested within a multicenter RCT of yoga for lower back pain. Participants who provided an electronic mail address and/or mobile phone number were randomized to receive an ER or no reminder (controls) on the day they were due to receive a follow-up questionnaire. RESULTS: One hundred twenty-five participants (32 males and 93 females) mean age 46 (standard deviation: 11, range: 20-65) were randomized to ER (n=62) or controls (n=63). Overall 85.6% of participants returned postal questionnaires (87.1% ER group and 84.1% from controls). No significant differences were found between the two groups for response rate (difference between groups=3.0%, 95% confidence interval [CI]=-10, 16; P=0.64) or time to response after adjusting for age, gender, and treatment allocation (χ(2) ([3df])=7.10; P=0.07). CONCLUSION: In the present RCT, we found little evidence for the effectiveness of ERs to increase response rates or time to respond for the return of questionnaires in this study population group.

Item Type: Article
Faculty \ School: Faculty of Medicine and Health Sciences > Norwich Medical School
UEA Research Groups: Faculty of Medicine and Health Sciences > Research Centres > Population Health (former - to 2025)
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Depositing User: LivePure Connector
Date Deposited: 28 Jan 2020 03:54
Last Modified: 17 Oct 2025 11:33
URI: https://ueaeprints.uea.ac.uk/id/eprint/73839
DOI: 10.1016/j.jclinepi.2010.10.013

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