Ref (type)	Population	Outcome, Interventions	Results and statistical analysis	Effect size	Favours
Eradication rate
RCT	145 children aged 5–15 years with head lice	Proportion louse-free 7 days (before second treatment) 47/73 (64%) with dimeticone 43/72 (60%) with permethrin	RR 1.22 95% CI 0.59 to 2.52 P = 0.5 See Further information on studies		Not significant
RCT	145 children aged 5–15 years with head lice	Proportion louse-free 9 days 70/72 (97%) with dimeticone 48/71 (67%) with permethrin	RR 1.44 95% CI 1.22 to 1.70 P <0.0001 See Further information on studies	Small effect size	dimeticone
RCT	90 children and adults with confirmed head lice infestation	Elimination of infestation after completion of treatment regimen by 14 days 30/43 (69.8%) with dimeticone liquid gel 7/47 (14.9%) with permethrin creme rinse	OR 13.19 95% CI 4.69 to 37.07 P <0.001 See Further information on studies	Large effect size	dimeticone