Allocation, concealment, and blinding
RECRUITMENT, BLIND
The study was conducted as a cluster-randomized trial where all patients connected to a specific general practice were either allocated to the intervention or control group. Practices were randomly assigned on a 2:1 basis using a computer algorithm. Randomisation was disclosed after all general practices were assigned and patient recruitment was completed. Due to the nature of the intervention, it was impossible to blind the participants or other members of the research team.