Table 2

DAS, HAQ and follow-up duration at the final available visit

ACPA negativeACPA positive
Erosions negativeErosions positiveErosions negativeErosions positive
6 months
 DAS, mean (SD)2.17 (0.91)2.40 (0.94)2.32 (0.97)2.36 (0.92)
 HAQ, mean (SD)0.53 (0.51)0.62 (0.54)0.51 (0.49)0.56 (0.49)
 FU duration, median (IQR)4.1 (3.2; 5.0)4.1 (3.3; 5.2)4.1 (3.4; 5.0)4.0 (3.4; 4.9)
12 months
 DAS, mean (SD)2.07 (0.96)2.30 (0.94)2.27 (0.98)2.33 (0.95)
 HAQ, mean (SD)0.54 (0.53)0.61 (0.50)0.52 (0.49)0.57 (0.48)
 FU duration, median (IQR)9.2 (6.0; 10.6)8.8 (6.0; 10.7)9.0 (6.2; 10.6)9.3 (6.7; 10.6)
  • Mean DAS and HAQ are based on non-imputed data, at the final available visit within the mentioned time period (6 or 12 months). Time periods refer to a maximum follow-up duration. Since data is gathered according to daily practice, time intervals between individual patients differ. FU duration indicates the median available follow-up duration per ACPA/erosions group. Proportion of missing data over time 27.4% for DAS and 25.4% for HAQ.

  • DAS, Disease Activity Score; FU, follow up in months; HAQ, Health Assessment Questionnaire.