Skip to main content

Table 1 Louse-Free Rate the Day After Final Treatment (ITT Population)

From: A randomised, assessor blind, parallel group comparative efficacy trial of three products for the treatment of head lice in children - melaleuca oil and lavender oil, pyrethrins and piperonyl butoxide, and a "suffocation" product

     P-value
   Number Louse-free Louse-free Percentage Unadjusted Adjusted
Louse-free rate:
Tea Tree/Lavender Oil product versus
Pyrethrins/piperonyl butoxide product
Tea Tree/Lavender Oil product 41 out of 42
(41 out of 43)
97.62%
(95.35%)
< 0.0001 < 0.0001
  Pyrethrins/piperonyl butoxide product 10 out of 40
(10 out of 44)
25.0%
(22.73%)
  
Louse-free rate:
Suffocation product
versus
Pyrethrins/piperonyl butoxide product
Suffocation product 40 out of 41
(40 out of 45)
97.56%
(88.89%)
< 0.0001 < 0.0001
  Pyrethrins/piperonyl butoxide product 10 out of 40
(10 out of 44)
25.0%
(22.73%)
  
  1. Subjects in the ITT population for whom there was no information regarding whether or not they had lice on the day after the last treatment (9 subjects) were excluded from the first analysis of 123 subjects. When these 9 subjects were included in the analysis and counted as failures (132 subjects), the results are shown in brackets.