Professorship of Public Health and Prevention, Department of Sport and Health Sciences, Technical University of Munich, Munich, Germany
Department of Sport Science and Sport, Friedrich-Alexander-Universitat Erlangen-Nurnberg, Erlangen, Germany.
BMJ Open. 2023 Jul 17;13(7):e067235. doi: 10.1136/bmjopen-2022-067235.
The BIG project ('Bewegung als Investition in die Gesundheit', ie, 'Movement as Investment in Health') was developed in 2005 as a community-based participatory research programme to offer accessible opportunities for physical activity to women in difficult life situations. Since then, the programme has been expanded to eight sites in Germany. A systematic evaluation of BIG is currently being conducted. As part of this effort, we strive to understand the preferences of participating women for different aspects of the programme, and to analyse their willingness to pay.
In this protocol, we describe the development and analysis plan of a discrete choice experiment (DCE) to investigate participants' preferences for a physical activity programme for women in difficult life situations. The experiment will be embedded in a questionnaire covering several aspects of participation in the programme (eg, reach, efficacy and further effects) and the socioeconomic characteristics of all active participants. After a thorough search of the literature, BIG documents review and expert interviews, we identified five important attributes of the programme: course times, travel time to the course venue, additional social activities organised by BIG, consideration of wishes and interests for the further planning of courses and costs per course unit. Thereafter, we piloted the experiment with a sample of participants from the target group. After data collection, the experiment will be analysed using a conditional logit model and a latent class analysis to assess eventual heterogeneity in preferences.
Understanding women's preferences will provide useful insights for the further development of the programme and ultimately increase participation and retention. The questionnaire, the included DCE and the pretest on participants received ethical approval (application no. 20-247_1-B). We plan to disseminate the results of the DCE in peer-reviewed journals, national conferences and among participants and programme coordinators and organisers.
BIG 项目（“Bewegung als Investition in die Gesundheit”，即“运动是健康的投资”）于 2005 年作为一项基于社区的参与式研究计划而开发，旨在为处于困境中的女性提供可及的体育活动机会。自那时以来，该计划已扩展到德国的八个地点。目前正在对 BIG 进行系统评估。作为这项工作的一部分，我们努力了解参与女性对该计划不同方面的偏好，并分析她们的支付意愿。
在本方案中，我们描述了一项离散选择实验（DCE）的开发和分析计划，以调查参与者对困难生活情境中女性体育活动计划的偏好。该实验将嵌入一个调查问卷中，涵盖参与该计划的几个方面（例如，覆盖范围、效果和进一步影响）以及所有活跃参与者的社会经济特征。在对文献进行彻底搜索、BIG 文档审查和专家访谈之后，我们确定了该计划的五个重要属性：课程时间、前往课程地点的旅行时间、BIG 组织的额外社交活动、对课程进一步规划的意愿和兴趣以及每门课程单元的费用。此后，我们对目标人群中的参与者样本进行了实验试点。在收集数据后，我们将使用条件逻辑回归模型和潜在类别分析来分析实验，以评估偏好的潜在异质性。
了解女性的偏好将为该计划的进一步发展提供有用的见解，并最终增加参与度和保留率。问卷、包含的 DCE 和对参与者的预测试均获得了伦理批准（申请号 20-247_1-B）。我们计划在同行评议期刊、国家会议以及在参与者、计划协调员和组织者中传播 DCE 的结果。
