Ref (type)	Population	Outcome, Interventions	Results and statistical analysis	Effect size	Favours
Eradication rate
RCT	125 children (RCT 1) Data from 1 RCT	Proportion louse-free 1 day after second treatment 97.6% with benzyl alcohol 16.4% with placebo	P <0.001	Effect size not calculated	benzyl alcohol
RCT	125 children (RCT 1) Data from 1 RCT	Proportion louse-free 2 weeks after treatment 76.2% with benzyl alcohol 4.8% with placebo	P <0.001 ARR 71.4% 95% CI 61.8% to 85.7%	Effect size not calculated	benzyl alcohol
RCT	125 children (RCT 2) Data from 1 RCT	Proportion louse-free 1 day after second treatment 85.7% with benzyl alcohol 39.3% with placebo	P <0.001	Effect size not calculated	benzyl alcohol
RCT	125 children (RCT 2) Data from 1 RCT	Proportion louse-free 2 weeks after treatment 75.0% with benzyl alcohol 26.2% with placebo	P <0.001 ARR 48.8% 95% CI 31.1% to 62.0%	Effect size not calculated	benzyl alcohol