Table 2.

Outcome measures at follow-up for participants allocated Bug Buster kit or pediculicide for eliminating head lice

	Bug Buster kit (15 days)		Pediculicide (5 days)
Analysis	Total	% (No) cured	Total	Cured	P value	Relative risk (95% CI)
Participants with complete outcome data	56	57 (32)	70	13 (9)	<0.0001	4.4 (2.3 to 8.5)
Assuming treatment failure for participants with missing data	62	52 (32)	71	13 (9)	<0.0001	4.1 (2.1 to 7.8)
Assuming treatment failure for participants with missing data in Bug Buster group but success in insecticide group*	62	52 (32)	71	14 (10)	<0.0001	3.7 (2.0 to 6.8)

^*Extreme case analysis.