TABLE 2.

POSAS observer scale parameters mean values

Observer scale parameters	POSAS observer scale value, OST group	POSAS observer scale values, PDT group	P value
Vascularity	1.79 ± 0.053	1.67 ± 0.037	0.18
Pigmentation	1.79 ± 0.007	1.87 ± 0.051	0.40
Thickness	1.94 ± 0.075	1.97 ± 0.050	0.76
Relief	2.38 ± 0.093	2.45 ± 0.073	0.56
Pliability	1.79 ± 0.068	1.90 ± 0.055	0.20
Surface	2.30 ± 0.096	2.48 ± 0.081	0.16
Total score	12.00 ± 0.370	12.08 ± 0.280	0.86