Gielen 2002.

Methods	Cluster randomised controlled trial. Allocation by project director using random numbers table. Blinding not specified.
Participants	39 doctors in training (187 parents of children aged 0‐6 months).
Interventions	I: Offer to parents of home safety visit by community health worker for hazard assessment and safety education, and referral to safety center; 5 hours of special training for doctors in injury prevention counseling. C: Referral of parents to safety center; 5 hours of special training for doctors in injury prevention counseling.
Outcomes	Home inspection, interview after 12 months health surveillance visit: Final functioning alarms.
Notes	Loss to follow‐up: I: 34% of families; C: 35% of families.
Risk of bias
Bias	Authors' judgement	Support for judgement
Allocation concealment?	High risk	C ‐ Inadequate