Table 1.

Comparison of the number of lice at each development stage found at post-treatment assessments

Assessment day	Louse life stage	Mean number of lice [SD]		P value
		Shampoo	Lotion
Day 2	#1 nymph	0.4 [0.7]	1.8 [6.4]	NS
	#2 nymph	0.7 [1.3]	0.6 [1.8]	NS
	#3 nymph	0.6 [1.3]	0.5 [1.4]	NS
	Male	0.6 [1.8]	0.8 [3.0]	NS
	Female	0.4 [1.0]	1.6 [4.4]	NS
Day 9	#1 nymph	0.2 [0.6]	1.7 [3.7]	<0.001
	#2 nymph	0.2 [0.6]	1.8 [2.7]	<0.001
	#3 nymph	0.2 [0.5]	2.9 [6.0]	<0.001
	Male	0.8 [1.2]	0.9 [1.7]	NS
	Female	1.4 [2.0]	1.3 [1.7]	NS
Day 11	#1 nymph	0.0 [0.0]	0.6 [2.4]	<0.05
	#2 nymph	0.0 [0.0]	0.7 [1.7]	<0.01
	#3 nymph	0.1 [0.3]	0.6 [1.3]	<0.01
	Male	0.1 [0.3]	0.3 [0.7]	NS
	Female	0.2 [0.5]	0.6 [1.0]	<0.01
Day 14	#1 nymph	0.4 [1.9]	0.9 [3.4]	NS
	#2 nymph	0.2 [0.9]	0.8 [2.6]	NS
	#3 nymph	0.1 [0.2]	0.8 [3.3]	NS
	Male	0.2 [0.6]	0.3 [0.7]	NS
	Female	0.3 [1.2]	0.9 [1.4]	<0.01

Abbreviations: SD, standard deviation; NS, not significant.