Assessment of sensitivity and specificity of different definitions of REM/LDA against the anchor of patient-perceived REM/LDA
| Definition tested | Property | Anchor: patient-perceived REM | Anchor: patient-perceived LDA | Anchor: patient-perceived REM or LDA |
| VLDA/MDA | Sensitivity (n/n) | 38.6% (34/88) | 34.4% (62/180) | 51.5% (138/268) |
| Specificity (n/n) | 94.7% (305/322) | 81.7% (188/230) | 88.0% (125/142) | |
| DAPSA REM/LDA | Sensitivity (n/n) | 47.7% (42/88) | 56.1% (101/180) | 73.1% (196/268) |
| Specificity (n/n) | 88.8% (286/322) | 73.5% (169/230) | 76.8% (109/142) | |
| Physician-perceived REM/LDA | Sensitivity (n/n) | 65.9% (58/88) | 40.6% (73/180) | 81.0% (217/268) |
| Specificity (n/n) | 72.0% (232/322) | 75.7% (174/230) | 57.7% (82/142) |
Sensitivity n/n: n patients perceived as in the status by the score/n patients in the status according to the patient-defined anchor status.
Specificity n/n: n patients perceived as NOT in the status by the score/n patients NOT in the status according to the patient-defined anchor status.
DAPSA, Disease Activity Index for PSoriatic Arthritis; LDA, low disease activity; MDA, minimal disease activity; REM, remission.