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Table 5 Status and progression mSASSS and RASSS scores for radiographs in which RASSS was evaluable.

From: Scoring radiographic progression in ankylosing spondylitis: should we use the modified Stoke Ankylosing Spondylitis Spine Score (mSASSS) or the Radiographic Ankylosing Spondylitis Spinal Score (RASSS)?

  All radiographs with RASSS evaluable (n= 629) All radiographs with RASSS evaluable and from patients with RASSS available at year 12
(n= 277)
All radiographs with four additional thoracic VCs available (n= 226) All baseline radiographs with RASSS evaluable from patients with baseline-year 2 interval evaluable (n= 134)
STATUS SCORES mSASSS RASSS mSASSS RASSS mSASSS RASSS mSASSS RASSS
Total Score 15.5 (17.9) 18.0 (20.9) 18.0 (19.3) 20.8 (22.4) 17.3 (18.2) 20.5 (21.4) 10.2 (14.2) 11.8 (16.6)
Cervical segment 8.4 (10.1) 7.9 (10.1) 10.0 (10.7) 9.5 (10.7) 8.9 (10.0) 8.3 (10.0) 5.5 (8.2) 5.2 (8.1)
Lumbar segment 7.1 (9.8) 7.1 (9.8) 8.0 (10.0) 8.0 (9.9) 8.4 (10.2) 8.4 (10.2) 4.6 (7.9) 4.6 (7.9)
Lumbar segment (with thoracic segment included) - 10.1 (13.1) - 11.4 (13.2) - 12.2 (13.7) - 6.6 (10.7)
Thoracic segment - 3.0 (3.9) - 3.4 (3.8) - 3.8 (4.4) - 2.0 (3.4)
2-YEAR PROGRESSION SCORES All radiographs with 2-year RASSS intervals evaluable (n = 330) All radiographs with RASSS evaluable and from patients with RASSS available at year 12 and with 2-year RASSS intervals evaluable (n = 159) All radiographs with four additional VCs available and 2-year RASSS intervals evaluable (n = 64) All radiographs with RASSS evaluable from patients with baseline-year 2 interval evaluable (n = 96)
Total Score 2.0 (3.6) 2.4 (4.4) 2.4 (4.5) 2.9 (5.5) 2.1 (3.3) 2.8 (4.2) 1.9 (4.1) 2.2 (5.0)
Cervical segment 1.2 (2.2) 1.2 (2.3) 1.5 (2.6) 1.4 (2.9) 1.2 (2.0) 1.1 (1.9) 1.0 (2.6) 0.9 (2.9)
Lumbar segment 0.8 (2.0) 0.8 (2.1) 1.0 (2.4) 1.0 (2.4) 0.9 (2.2) 0.9 (2.2) 0.9 (2.2) 0.9 (2.2)
Lumbar segment (with thoracic segment included) - 1.2 (2.8) - 1.5 (3.3) - 1.6 (3.3) - 1.3 (3.1)
Thoracic segment - 0.4 (1.2) - 0.5 (1.2) - 0.7 (1.7) - 0.4 (1.4)
  1. *Data are expressed as mean (SD). mSASSS, modified Stoke Ankylosing Spondylitis Spine Score; RASSS, radiographic Ankylosing Spondylitis Spinal Score; SD, standard deviation, VC, vertebral corner.