Table 4.

Mean mSASSS change within cDMARD intervals estimated from the multivariable models.

	Model 1		Model 2
	cDMARD	Non-cDMARD	SSZ-MTX combination	SSZ	MTX	Non-SSZ and non-MTX
Adjusted mSASSS change per year*	0.610	0.691	0.485	0.665	0.496	0.676

^*Adjusted for sex, eye involvement, peripheral joint involvement, and ESR at the interval start (log).

cDMARD, conventional disease-modifying antirheumatic drug; mSASSS, modified Stoke Ankylosing Spondylitis Spine Score; MTX, methotrexate; SSZ, sulfasalazine.