National Institute of Public Health, University of Southern Denmark, Denmark.
Center for Clinical Research and Prevention, Bispebjerg and Frederiksberg Hospital, Capital Region of Denmark, Denmark.
Scand J Public Health. 2022 Mar;50(2):180-188. doi: 10.1177/1403494820966534. Epub 2020 Nov 8.
This article aims to describe the study design, including descriptive statistics on changes in response rates, characteristics associated with response and response mode distribution, in the Danish National Health Survey (DNHS) in 2010, 2013 and 2017. Each survey was based on five regional stratified random samples and one national random sample drawn from the Danish Civil Registration System. The subsamples were mutually exclusive. Around 300,000 individuals (aged ⩾16 years) were invited to participate in each survey using a mixed-mode approach (paper/web). A questionnaire with a minimum of 52 questions was used in all subsamples. In 2010 and 2013, invitations were sent via the regular postal service, whereas a secure electronical mail service was used to invite the majority (around 90%) in 2017. Weights accounted for survey design and non-response. Participation decreased from 59.5% in 2010 to 54.0% in 2013 after which it increased to 58.7% in 2017. The proportion answering the web questionnaire increased from 31.0% to 77.4% between 2013 and 2017 and varied from 73.8% to 79.7% between the subsamples in 2017. Overall, the response rate was low among young men and old women and among individuals who were unmarried, had low sociodemographic status, were from ethnic minority backgrounds or were living in the eastern part of Denmark.
本文旨在描述研究设计，包括 2010 年、2013 年和 2017 年丹麦国家健康调查（DNHS）中应答率变化的描述性统计数据、与应答相关的特征以及应答方式分布。每次调查都是基于丹麦民事登记系统中的五个区域分层随机样本和一个全国随机样本。子样本相互排斥。大约 30 万名（年龄 ⩾16 岁）个体通过混合模式（纸质/网络）受邀参加每个调查。所有子样本均使用包含至少 52 个问题的问卷。2010 年和 2013 年，通过常规邮政服务发送邀请，而 2017 年则使用安全的电子邮件服务邀请大多数（约 90%）个体。权重考虑了调查设计和无应答情况。2010 年的参与率为 59.5%，2013 年降至 54.0%，之后在 2017 年增加到 58.7%。2013 年至 2017 年间，回答网络问卷的比例从 31.0%增加到 77.4%，2017 年各子样本的比例在 73.8%至 79.7%之间变化。总体而言，年轻男性和老年女性、未婚、社会经济地位低、少数民族背景或居住在丹麦东部的个体的应答率较低。
