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Table 3 Pearson correlation coefficients at the primary assessment time point

From: A multi-item Physician Global Assessment scale to assess psoriasis disease severity: validation based on four phase III tofacitinib studies

Study Pearson correlation coefficients
(Prob > |r| under H0: Rho = 0)
Number of observations
PGA vs PASI PGA vs PtGA PGA vs DLQI
OPT Pivotal 1 0.77
(p < 0.0001)
798
0.70
(p < 0.0001)
790
0.57
(p < 0.0001)
789
OPT Pivotal 2 0.79
(p < 0.0001)
851
0.72
(p < 0.0001)
841
0.53
(p < 0.0001)
843
OPT Compare 0.79
(p < 0.0001)
1027
0.66
(p < 0.0001)
1011
0.53
(p < 0.0001)
1008
OPT Retreatment 0.75
(p < 0.0001)
555
0.70
(p < 0.0001)
549
0.44
(p < 0.0001)
549
  1. DLQI Dermatology Life Quality Index, PASI Psoriasis Area and Severity Index, PGA Physician Global Assessment, PtGA Patient Global Assessment
  2. Italic values represent the number of observations