Table 2.
Louse-free Rate the Day After Final Treatment (PP population)
| 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 | 40 out of 41 | 97.56 | < 0.0001 | * |
| Pyrethrins/piperonyl butoxide product | 10 out of 30 | 33.33 | |||
| Louse-free rate: Suffocation product versus Pyrethrins/piperonyl butoxide product |
Suffocation product | 37 out of 37 | 100 | < 0.0001 | * |
| Pyrethrins/piperonyl butoxide product | 10 out of 30 | 33.33 | |||
*The adjusted p-values could not be calculated because the generalized Hessian matrix was not positive definitive (the off-diagonal elements are too few)