Unité de Recherche en Epidémiologie Nutritionnelle (UREN), Bobigny Cedex, France.
Int J Public Health. 2011 Aug;56(4):407-17. doi: 10.1007/s00038-011-0257-5. Epub 2011 May 3.
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.
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.
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
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.
基于网络的研究如今引起了极大的兴趣，因为它们可以改进观察性研究的所有步骤。我们的目的是比较 NutriNet-Santé 自我管理的社会人口学和经济问卷的网络版和传统的纸质版。
两种版本的问卷都被发送给了 170 名志愿者，其中 147 名志愿者填写了问卷（先填纸质版的 76 人，先填网络版的 71 人）。通过组内相关系数（ICC）和 Kappa 值评估两种版本之间的一致性。
两种版本之间的一致性很高，ICC 和 Kappa 值分别在 0.81-1.00 和 0.76-1.00 之间，在不同的管理顺序、年龄、性别和自我估计的网络知识组中也是如此。93.7%的受试者更喜欢网络版，它避免了 553 个缺失值（占总条目数的 2.00%）、24 个不一致的数据（0.09%）、8 个异常数据（0.03%）、472 个数据录入错误（0.85%），并且当发送给 170 名受试者时节省了 2800 欧元（4072 美元）。
与传统的纸质版相比，网络版的社会人口学和经济问卷提供了质量相当甚至更好的信息，具有实质性的后勤和成本优势。
