Table 2.
Mean overall clinical dandruff scores and changes over time during the intensive treatment phase (W0 to W2) in the global study population and during the maintenance phase (W2 to W10) in control and treated patients
| Clinical parameter | Overall clinical score | ||
|---|---|---|---|
| Treated (mean ± SD) | Control (mean ± SD) | p value$ | |
| Intensive treatment phase | |||
| W0 | 30.8 ± 12.3 | ||
| W1 | 18.3 ± 9.6 | ||
| W2 | 9.6 ± 8.4 | ||
| % Change W1 vs. W0 | −40.5**** | ||
| % Change W2 vs. W0 | −68.8**** | ||
| Maintenance phase | |||
| W2 | 9.6 ± 8.3 | 9.7 ± 8.7 | |
| W6 | 5.9 ± 6.3 | 16.3 ± 11.4 | |
| % Change W6 vs. W0 | −79.9**** | −49.2**** | 0.0407 |
| % Change W6 vs. W2 | −37.8* | +68.4*** | <0.0001 |
| W10 | 5.15 ± 6.6 | 21.60 ± 12.2 | |
| % Change W10 vs. W0 | −82.6**** | −32.5**** | <0.0001 |
| % Change W10 vs. W2 | −46.0** | +123.7**** | <0.0001 |
Intragroup comparison of mean ± standard deviation (SD) change versus W0 or W2 using Kolmogorov–Smirnov, Wilcoxon’s signed rank or paired Student’s t test, * p < 0.05, ** p < 0.01, *** p < 0.001, **** p < 0.0001
SD standard deviation
$Intergroup comparison using an analysis of covariance (ANCOVA)