Fig. 3

Difference in the PhA between psoriatic patients and control group according to gender. The gender-specific difference in the PhA between males and females was evidenced in psoriatic patients and control group (5.3 ± 1.0 vs 4.9 ± 0.9, p = 0.008 and 6.0 ± 0.7 vs 5.5 ± 0.7, p < 0.001; in males and females, respectively), (a) Although the PhA was smaller in males and females psoriatic patients than in controls, (5.3 ± 1.0 vs 6.0 ± 0.7, p < 0.001 and 4.9 ± 0.9 vs 5.5 ± 0.7, p < 0.001, respectively), (b). Results are expressed as mean ± SD according to variable distributions evaluated by Kolmogorov–Smirnov test. A p value in bold type denotes a significant difference (p < 0.05). Differences between groups were analyzed by paired t test