Table 2

Cumulative probabilities of attaining inactive disease within 1, 2, 3, 4 and 5 years after diagnosis

		Probability of attaining a state of inactive disease and (number of subjects still in the cohort with persistent active disease)
ILAR category	Number*	Within 1 year	Within 2 years	Within 3 years	Within 4 years	Within 5 years
Whole cohort	1086	0.449 (572)	0.777 (180)	0.847 (85)	0.916 (26)	0.952 (6)
Systemic arthritis	74	0.453 (39)	0.708 (19)	0.727 (11)	0.851 (6)	0.851 (3)
Oligoarthritis	410	0.606 (155)	0.864 (43)	0.917 (15)	0.961 (3)	0.961 (1)
RF-negative Polyarthritis	232	0.341 (148)	0.709 (51)	0.780 (30)	0.880 (11)	0.966 (1)
RF-positive Polyarthritis	46	0.221 (34)	0.483 (17)	0.666 (6)	0.791 (3)	0.930 (1)
Psoriatic arthritis	63	0.459 (32)	0.907 (4)	0.930 (2)	0.930 (1)	1.00 (0)
Enthesitis-related arthritis	153	0.336 (96)	0.724 (28)	0.872 (11)	0.925 (1)	0.925 (0)
Undifferentiated	108	0.33 (68)	0.784 (18)	0.837 (9)	0.888 (2)	1.00 (0)