Table 2.

Between-person Pearson correlations between standardized time-integrated (AUC) disease activity and radiological progression (from previous time point) for each time interval

	Baseline–6 months	6 months–1 year	1–2 years	2–3 years
DAS28-ESR	0.060 (n = 192)	0.170* (n = 164)	0.109 (n = 150)	0.209* (n = 146)
CRP	0.042 (n = 192)	0.137 (n = 166)	0.178* (n = 150)	0.275** (n = 147)

*P < 0.05; **P < 0.01. n = number of patients with an available time-integrated disease activity score and a radiographic progression score in the time interval