一项随机试验表明，电子提醒可减少对邮寄问卷的响应时间。

A randomized trial of electronic reminders showed a reduction in the time to respond to postal questionnaires.

机构信息

Department of Health Sciences, York Trials Unit, Area 4, Seebohm Rowntree Building, The University of York, Heslington, York YO10 5DD, UK.

出版信息

J Clin Epidemiol. 2011 Feb;64(2):208-12. doi: 10.1016/j.jclinepi.2010.01.020. Epub 2010 Jun 15.

DOI:10.1016/j.jclinepi.2010.01.020

PMID:20554428

Abstract

OBJECTIVE

To assess the effect of electronic reminders (ERs) on response rate and time to response for the return of postal questionnaires.

STUDY DESIGN AND SETTING

This open randomized controlled trial (RCT) was conducted at the University of York. Participants who were taking part in an established RCT and who provided an electronic mail address and/or mobile telephone number were eligible to take part in the study. The intervention group received ERs on the day they were expected to receive postal questionnaires.

RESULTS

One hundred forty-eight participants (19 male and 129 female) aged 47±11 (range, 19-65) years were studied. About 89.2% of participants returned postal questionnaires. There was no difference in questionnaire response rates in control (64 of 74 [86.5%]) vs. intervention (68 of 74 [91.9%]), groups (relative risk=1.063, 95% confidence interval: 0.949-1.189). Median questionnaire time to response was 4 days less in the intervention group (10.0±0.2; range, 10-14 days) compared with the control group (14.0±1.4; range, 10-23 days) (χ(2)(1df)=5.27, P=0.022).

CONCLUSION

ERs are useful tools for reducing participant time to response for postal questionnaires. We found little evidence for an effect of ERs on response rate for postal questionnaires.

摘要

目的

评估电子提醒（ER）对邮寄问卷回复率和回复时间的影响。

研究设计和设置

这是一项在约克大学进行的开放性随机对照试验（RCT）。符合条件的参与者为正在参与既定 RCT 且提供电子邮件地址和/或手机号码的参与者。干预组在预计收到邮寄问卷的当天收到 ER。

结果

研究共纳入 148 名参与者（19 名男性和 129 名女性），年龄 47±11（范围，19-65）岁。约 89.2%的参与者返回了邮寄问卷。对照组（74 人中有 64 人[86.5%]）和干预组（74 人中有 68 人[91.9%]）的问卷回复率无差异（相对风险=1.063，95%置信区间：0.949-1.189）。干预组问卷回复时间中位数比对照组少 4 天（干预组 10.0±0.2；范围，10-14 天；对照组 14.0±1.4；范围，10-23 天）（χ(2)(1df)=5.27，P=0.022）。