Table 4 Proportions of cases (%) below and beyond the identified patient acceptable symptom state (PASS) cut-off points* within ranges of existing disease activity levels (remission, low, moderate)
Measure⩽PASS*>PASS*Accuracy† (%)κ‡
  • Agreement between new PASS cut-off points and existing threshold values is expressed as accuracy (%) and κ values.

  • *DAS28 PASS = 4.11, SDAI PASS = 16.2, CDAI PASS = 14.7, PAS PASS = 3.56. †Accuracy is the percentage of congruently classified patients divided by all patients. ‡κ is a measure of agreement between raters, ranging in strength from 0 to 1.00.

  • CDAI, Clinical Disease Activity Index; DAS28, 28-joint Disease Activity Score; PAS, Patient Activity Scale; SDAI, Simplified Disease Activity Index,