Table 2

Progression in mSASSS over time for the total group and stratified for the presence or absence of existing syndesmophytes at baseline

Change from baseline
Baseline mSASSS2 Years4 Years
Total group (n=132)12.8 (17.5)2.5 (4.2)4.2 (6.4)
Absence of baseline syndesmophytes (n=51)1.2 (3.0)*0.4 (1.0)*0.8 (2.2)*
Presence of baseline syndesmophytes (n=81)20.0 (18.9)*3.9 (4.9)*6.4 (7.2)*
  • Mean (SD).

  • * All values were significantly different (p<0.001) between the two groups (absence vs presence of baseline syndesmophytes).

  • mSASSS, modified Stoke Ankylosing Spondylitis Spine Score.