Table 3.

Multivariate regression analysis of variables associated with patient global assessment of disease activity.

VariablesBetapCollinearity
ToleranceVIF
Pain0.348< 0.0010.5871.703
SF-36 MCS−0.285< 0.0010.8241.213
SF-36 PCS−0.2360.0050.6791.473
PASI0.1520.0290.9771.023
  • SF-36 PCS: physical component summary score of Medical Outcomes Study Short Form-36; SF-36 MCS: mental component summary score of SF-36; PASI: Psoriasis Area and Severity Index; VIF: variance inflation factor.