CoMix social contact data for Switzerland (2021-2022)

CoMix is a social contact survey that followed households across Europe throughout the COVID-19 pandemic (Verelst et al., 2021). In Switzerland, we conducted a total of 24 survey waves from 22 January 2021 to 19 May 2022. The market research company Ipsos MORI recruited a nationally representative sample of study participants using quota sampling based on age, gender, region, and work status through a combination of social media, web advertising, and email campaigns. The survey included adults aged 18 or above and parents (at least 18 years old) who completed the surveys on behalf of their children (<18 years old). For parents, quotas were set on region only. 
Participants reported their social contacts made on the day prior to survey participation. A contact was defined as anyone who met the participant in person with whom at least a few words were exchanged or physical contact was made. The design of the survey is largely based on the POLYMOD study (Mossong et al., 2008). Further details about the study design and methodology have been published elsewhere (Verelst et al., 2021; Wong et al., 2022).

CoMix是一项社交接触调查，在整个新冠疫情期间追踪欧洲各地的家庭（Verelst等人，2021）。在瑞士境内，我们于2021年1月22日至2022年5月19日期间共开展了24轮调查。市场调研公司益普索·莫里（Ipsos MORI）通过社交媒体、网络广告与电子邮件推广相结合的方式，采用基于年龄、性别、地区及工作状态的配额抽样法，招募了具有全国代表性的研究参与者。本次调查的对象为18周岁及以上的成年人，以及代表未成年（<18岁）子女完成问卷的家长（需年满18周岁）；针对家长群体，仅设置地区维度的配额。参与者需报告其在问卷填写前一日的社交接触情况，接触的定义为：与参与者当面会面，且至少进行了简短交谈或发生肢体接触的任何人。本调查的设计主要基于POLYMOD研究（Mossong等人，2008）。有关研究设计与方法论的更多细节已在其他学术出版物中发表（Verelst等人，2021；Wong等人，2022）。