Variation of the activity score	Flare considered by patient and physician	Flare considered by physician	Flare considered by patient
BASDAI	2.1	2.1	2.1
Number of 2 visits	67	97	76
AUC	0.715	0.671	0.694
Specificity %	83	82	83
Sensitivity %	59	53	55
ASDAS-CRP	1.3	0.7	1.3
Number of 2 visits	30	45	34
AUC	0.740	0.698	0.682
Specificity %	100	72	100
Sensitivity %	47	59	40
ASDAS-ESR	0.8	0.8	0.8
Number of 2 visits	28	28	31
AUC	0.779	0.779	0.759
Specificity %	91	91	92
Sensitivity %	56	56	50