Table 3.

Standardized response means for circumferential height, maximal height, and volumes of syndesmophytes and mSASSS per patient. Values are mean (95% CI).

Characteristics	Baseline to Yr 1	Baseline to Yr 2
Circumferential height	0.72 (0.71–0.74)	0.87 (0.85–0.89)
Maximal height	0.54 (0.53–0.55)	0.68 (0.68–0.69)
Volume	1.10 (1.08–1.13)	1.29 (1.27–1.32)
Adapted mSASSS, reader 1	0.26 (0.25–0.27)	0.23 (0.21–0.24)
Adapted mSASSS, reader 2	0.25 (0.23–0.26)	0.21 (0.20–0.22)

mSASSS: modified Stoke Ankylosing Spondylitis Spine Score.