Table 6.

AUC-ROC values (standard error and 95% CIs), calculated to distinguish patients with active (Group A) and inactive disease (Group B), were similar for touch-screen PsAID-12, HAQ, SF-36 PCS, and composite disease activity indices

Disease activity, function and health status indices	AUC	SEa	95% CIb
CPDAI	0.941	0.0175	0.907–0.975
PASDAS	0.882	0.0425	0.799–0.965
DAPSA	0.993	0.0057	0.982–1.000
HAQ	0.928	0.0202	0.889–0.968
SF-36 PCS	0.847	0.0332	0.781–0.912
PsAID-12 (touch-screen)	0.937	0.0196	0.898–0.975

Notes:

^aHanley and McNeil.42

^bAUC ±1.96 SE.

Abbreviations: AUC, area under the curve; ROC, receiver operating characteristic; CI, confidence interval; PsAID-12, Psoriatic Arthritis Impact of Disease 12 items; HAQ, Health Assessment Questionnaire; SF-36 PCS, Physical Component Summary score of the Medical Outcome Survey Short Form-36; SE, standard error; CPDAI, Composite Psoriatic Disease Activity Index; PASDAS, Psoriatic Arthritis Disease Activity Score; DAPSA, Disease Activity Index for Psoriatic Arthritis.