Participants and procedures
Participants in the cluster-RCT were recruited between February 2018 and February 2020 from primary care centres (PCCs) in Sweden’s Västra Götaland Region (Björk Brämberg et al. A web-based questionnaire for baseline data was sent at inclusion and was responded to by 93.4%. Follow-up data were collected by text messages that were sent every fourth week after the baseline questionnaire for 12 months. Baseline data and follow-up data were self-reported and the data collection was monitored by research assistants blinded for group assignment. For the present study, 