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Table 2 Status and progression scores and proportion of patients with damage and progression according to the mSASSS and the composite CASSS

From: Incorporating assessment of the cervical facet joints in the modified Stoke ankylosing spondylitis spine score is of additional value in the evaluation of spinal radiographic outcome in ankylosing spondylitis

 

mSASSS (range 0–72)

CASSS (range 0–87)

Status scores

 Observed range

0–72

0–87

 Mean ± SD

19.3 ± 18.7

21.8 ± 21.3

 Median (IQR)

11.3 (5.1–29.9)

13.5 (5.4–36.6)

 Definite damage

51 (57)

54 (61)

 Maximum score

3 (3)

1 (1)

Progression scores

 Observed range

−3.5–20.8

−4.3–20.8

 Mean ± SD

2.7 ± 4.6

3.0 ± 4.8

 Median (IQR)

1.2 (0.0–3.6)

1.6 (0.0–4.2)

 SDC

1.8

1.9

 SRM

0.59

0.63

 Progression >0

64 (72)

64 (72)

 Progression ≥ SDC

40 (45)

41 (46)

 Definite progression

43 (48)

49 (55)

  1. Values are presented as mean ± SD, median (IQR), or number of patients (%). mSASSS modified stoke ankylosing spondylitis spine score, CASSS combined ankylosing spondylitis spine score, SDC smallest detectable change, SRM standardized response mean