Skip to main content

Table 3 Spearman’s rank correlation coefficients between the total PDI score and the DLQI, SF-36 scores

From: Reliability and validity of the Chinese version of the Psoriasis Disability Index (PDI) in Chinese patients with psoriasis

 

N

r s (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)

  1. a Excellent correlation. b Moderate to good correlation. c Fair correlation.
  2. N: Sample size when correlation was calculated. r s : Spearman’s rank correlation coefficients.
Back to article page

Health and Quality of Life Outcomes

ISSN: 1477-7525

Contact us