Table 1.

Sensitivity to change (SMD (95% CI]) of different outcomes in early axSpA over 3 years

	Baseline value	SMD between baseline and M6	SMD between M6 and M12	SMD between M12 and M24	SMD between M24 and M36

	(mean ± SD)	[95% confidence interval (CI)]	[95% CI]	[95% CI]	[95% CI]

PCS	40.5±9.2	0.27 [-0.41;-0.14]	0.02 [-0.11; 0.15]	0.02 [-0.11; 0.16]	-0.02 [-0.15; 0.11]
MCS	40.4±11.0	-0,26 [-0,39; -0,13]	0.02 [-0.11; 0.16]	-0.08 [-0.21; 0.05]	0.00 [-0.13; 0.13],
PGA	6.1±2.2	0.69 [0.56;0.83],	0.09 [-0.04; 0.22]	0.06 [-0.07; 0.19]	0.05 [-0.08; 0.18]
ASQoL	9.1±5	0.36 [0.22;0.49]	-0.01 [-0.14; 0.12]	0.02 [-0.12; 0.15]	0.00 [-0.14; 0.13]
AS-HAQ	0.63±0.5	0.24 [0.11;0.38],	-0.04 [-0.17; 0.09]	0.02 [-0.11; 0.15]	0.00 [-0.13; 0.13]
ASDAS-CRP	2.6±0.98	0.52 [0.38;0.65].	-0.03 [-0.17; 0.10]	0.06 [-0.08; 0.20]	0.10 [-0.04; 0.24]