Skip to main content

Advertisement

Springer Nature is making SARS-CoV-2 and COVID-19 research free. View research | View latest news | Sign up for updates

Table 3 Reliability of FAt Spondyloarthritis Spine Score stratified according to the time interval between MRI scans

From: The FAt Spondyloarthritis Spine Score (FASSS): development and validation of a new scoring method for the evaluation of fat lesions in the spine of patients with axial spondyloarthritis

Time interval between MRI scans (years) FASSS Smallest detectable change Reliability
Reader 1 Reader 2 ICCs (95% CI)
Baseline Change Baseline Change Baseline Change
0 to ≤1.0 (n = 20) 0.7 (0.3; 0.3 to 1.0) 21.8 (32.1) 3.7 (6.7) 19.7 (30.2) 6.8 (12.8) 4.5 0.96 (0.89 to 0.98) 0.74 (0.44 to 0.89)
>1.0 to ≤1.5 (n = 49) 1.3 (0.2; 1.01 to 1.5) 18.2 (20.9) 4.2 (8.7) 17.3 (19.2) 5.5 (9.5) 3.3 0.88 (0.80 to 0.93) 0.83 (0.72 to 0.90)
>1.5 to ≤2.0 (n = 28) 1.9 (0.1; 1.51 to 2.0) 28.8 (40.8) 5.1 (14.0) 27.0 (38.1) 6.7 (15.5) 4.2 0.98 (0.97 to 0.99) 0.90 (0.80 to 0.95)
>2.0 (n = 38) 2.6 (0.7; 2.01 to 4.9) 23.9 (28.4) 3.8 (11.9) 22.4 (28.0) 5.8 (12.6) 3.4 0.97 (0.94 to 0.98) 0.90 (0.80 to 0.95)
  1. Time interval presented as mean (standard deviation; range) and FAt Spondyloarthritis Spine Score (FASSS) as mean (standard deviation). CI, confidence interval; ICC, intra-class correlation coefficient; MRI, magnetic resonance imaging. FASSS baseline and change scores for Exercise 2 (n = 135 pairs of MRI scans) stratified according to the time interval between MRI scans, agreement and inter-reader reliability for these scores.