Feasibility of using web-based questionnaires in large population-based epidemiological studies
Feasibility of using web-based questionnaires in large population-based epidemiological studies
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DOI：
10.1007/s10654-005-6030-4
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发表时间：
2006-02-01
影响因子：
13.6
通讯作者：
Litton, JE
中科院分区：
文献类型：
--
作者：
Ekman, A;Dickman, PW;Litton, JE
到目前为止，很少有大型的基于网络的流行病学研究已在人口为基础的设置。瑞典有最佳的先决条件，以网络为基础的研究与超过80%的一般人口可以访问互联网。我们的目的是调查（I）主要使用网络作为数据收集工具的流行病学研究中的应答率，以及（II）网络和纸质问卷应答者之间的社会人口统计学模式是否不同。2003年，我们邀请了47 859名妇女填写网上问卷。向未答复者发出了两份催复通知;第一份催复通知是随机抽样，收到了一份纸质调查表，第二份催复通知是大多数人收到的纸质调查表。所有其他无应答者都收到了网络问卷。网络和纸质问卷的响应者之间的社会人口统计学和其他变量的响应率的差异进行了分析，并估计这些差异引入的偏差估计。总体而言，41%的妇女回答了网络问卷，31%回答了纸质问卷（总体回答率为72%）。网络，纸张和无应答者分别在年龄，体力活动水平和体重指数方面没有显着差异。回答网络或纸质问卷的女性受教育程度和收入水平较高，吸烟水平较低。使用网络问卷收集信息的偏差并不大于纸质问卷。我们的结论是，基于网络的问卷调查是一个可行的工具，在瑞典的大人口为基础的流行病学研究的数据收集。
To date, few large web-based epidemiological studies have been performed in a population-based setting. Sweden has optimal prerequisites for web-based studies with more than 80% of the general population having access to the Internet. Our aim was to investigate (I) response rates in an epidemiological study using primarily the web as a tool for data collection and (II) whether socio-demographic patterns vary between responders to a web and a paper questionnaire. In 2003, we invited 47,859 women to complete a web questionnaire. Two reminders were sent to non-responders; in the first a random sample received a paper questionnaire and in the second the majority received a paper questionnaire. All other non-responders received web questionnaires. Differences in response rates between responders to web and paper questionnaires with regard to socio-demographic and other variables were analyzed, and estimates of the bias introduced by these differences were estimated. In total, 41% of the women responded to the web questionnaire and 31% to the paper questionnaire (overall response rate 72%). The web-, paper- and non-responders respectively did not differ significantly in age, physical activity levels, and body mass index. Women answering web or paper questionnaires had a higher level of education and income and a lower level of smoking than non-responders. The bias associated with collecting information using web questionnaires was not greater than that caused by paper questionnaires. We conclude that web-based questionnaires are a feasible tool for data collection in large population based epidemiological studies in Sweden.