Table 2 Association between the sum radiographic sacroiliitis score and functional status/spinal mobility in patients with axial spondyloarthritis
Parameters | Unadjusted mixed model analysis (all patients, n = 210), B (95% CI) | Adjusted mixed model analysis (all patients, n = 210), B (95% CI) | Adjusted mixed model analysis (patients with AS, n = 105), B (95% CI) | Adjusted mixed model analysis (patients with nr-axSpA, n = 95), B (95% CI) |
|---|---|---|---|---|
Outcome: BASFI | ||||
Sacroiliitis sum score (0–8) | 0.09 (-0.05 to 0.22) | 0.10 (0.01 to 0.19) | 0.16 (-0.03 to 0.36) | 0.09 (-0.11 to 0.30) |
mSASSS, points (0–72) | - | 0.05 (0.03 to 0.07) | 0.04 (0.02 to 0.06) | 0.08 (0.03 to 0.14) |
BASDAI, points NRS (0–10) | - | 0.81 (0.74 to 0.88) | 0.84 (0.74 to 0.93) | 0.75 (0.63 to 0.86) |
CRP, mg/l | - | 0.00 (-0.01 to 0.01) | 0.00 (-0.01 to 0.01) | 0.00 (-0.02 to 0.01) |
Male sex | - | -0.02 (-0.40 to 0.37) | 0.03 (-0.48 to 0.55) | -0.13 (-0.74 to 0.48) |
Outcome: BASMI | ||||
Sacroiliitis sum score (0–8) | 0.20 (0.11 to 0.30) | 0.12 (0.03 to 0.21) | 0.17 (-0.02 to 0.37) | 0.21 (0.01 to 0.40) |
mSASSS, points (0–72) | - | 0.07 (0.05 to 0.09) | 0.07 (0.04 to 0.09) | 0.04 (-0.01 to 0.10) |
BASDAI, points NRS (0–10) | - | 0.22 (0.15 to 0.29) | 0.23 (0.14 to 0.32) | 0.18 (0.07 to 0.30) |
CRP, mg/l | - | 0.01 (0.00 to 0.02) | 0.01 (0.00 to 0.03) | 0.00 (-0.03 to 0.01) |
Male sex | - | 0.00 (-0.39 to 0.39) | 0.32 (-0.21 to 0.85) | -0.35 (-0.92 to 0.22) |