Table 3.
Comparison of Physician's Global Assessment (PGA) definitions of response with proposed absolute Psoriasis Area and Severity Index (PASI) definitions of response. These data are derived from 23 475 occasions in which PASI and PGA were both recorded on the same day, in 11 501 patients
PASI ≤ 2 | |||
---|---|---|---|
No | Yes | ||
PGA clear or almost cleara | No | 12 084 (51) | 824 (4) |
Yes | 1572 (7) | 8995 (38) | |
PASI ≤ 4 | |||
No | Yes | ||
PGA clear, almost clear or mildb | No | 7175 (31) | 407 (2) |
Yes | 2055 (9) | 13 838 (59) |
The data are presented as n (%). aAgreement 90%, Cohen's kappa 0·79 (95% confidence interval 0·78–0·80). bAgreement 90%, Cohen's kappa 0·77 (95% confidence interval 0·77–0·78).