Sample
RECRUITMENT
The present analysis used a cross-sectional design with a stratified, self-selected sampling procedure. Recruitment of participants was carried out between February 2018 and January 2019. Parents of children 0–18 months of age enrolled in the CHS in Dalarna county were invited to participate. The only inclusion criterion was knowledge of the Swedish language sufficient to understand information about the study and respond to the questions in the survey as assessed by the CHS nurse in her clinical contact with the parent. In connection with regular child health visits at Child Health Centers (CHCs), parents were given general information from the CHS nurse about the Child Safe project and asked if they were interested in participating. Parents who expressed an interest filled in a contact form which was forwarded to the study coordinator who provided oral and written information about the study. Parents who agreed to participate signed an informed consent form which was returned by regular mail to the study coordinator. A total of 852 parents of 704 children from both SEEK and control CHCs consented to participate. For 148 families, two parents were enrolled.