Table 3.

Spearman’s rank correlation coefficients between the total PDI score and the DLQI, SF-36 scores

	N	rs(P)
DLQI	815	0.78 a (<0.001)
SF-36
Physical functioning	800	−0.42 c (<0.001)
Role-physical	818	−0.58 b (<0.001)
Bodily pain	822	−0.51 b (<0.001)
General health	803	−0.34 c (<0.001)
Vitality	809	−0.40 c (<0.001)
Social functioning	814	−0.65 b (<0.001)
Role-emotional	826	−0.58 b (<0.001)
Mental health	796	−0.45 c (<0.001)

^a Excellent correlation. ^b Moderate to good correlation. ^c Fair correlation.

N: Sample size when correlation was calculated. r_s: Spearman’s rank correlation coefficients.