Bentzen 1997.

Methods	CBA (C) Allocation at level of municipality
Participants	Population of children aged 0‐15 years in 2 municipalities, Odense (intervention) and Randers (control)
Interventions	I = community injury prevention programme including advice in well child clinics and group based health programmes, pamphlets, puppet theatre, posters, exhibitions C = no community injury prevention programme
Outcomes	Outcomes measured over 4 years: Medically attended injuries (ED attendances) Incidence of cut injuries ‐ I = 468/10000 boys; 343/10000 girls at baseline and 361/10000 boys; 280/10000 girls at follow‐up C = 7.7/10000 boys; 5.8/10000 girls at baseline and 54.9/10000 boys; 40.9/10000 girls at follow‐up No P values reported
Notes	Blinding ‐ u Outcomes 80% ‐ y Balance ‐ y
Risk of bias
Bias	Authors' judgement	Support for judgement
Allocation concealment (selection bias)	Unclear risk	Not applicable ‐ non‐randomised study