Table 3 Baseline and 2-year follow-up scores, changes in the scores, and the ICC between reader 1 and 2 (sCTSS).
Timepoint | Reader 1 | Reader 2 | ICC (95% CI) | |
|---|---|---|---|---|
Whole spine (0–184) | ||||
Baseline | Mean (SD) | 11.7 ± 14.6 | 12.0 ± 12.5 | 0.96 (0.92–0.97) |
Median (IQR) | 7.0 [2.0–17.0] | 8.5 [3.0–16.0] | ||
2 years | Mean (SD) | 15.8 ± 16.1 | 15.8 ± 15.7 | 0.97 (0.94–0.98) |
Median (IQR) | 11.5 [5.0–22.0] | 12.5 [6.0–20.0] | ||
Change score (2 years—baseline) | Mean (SD) | 4.1 ± 5.9 | 3.8 ± 6.7 | 0.58 (0.36–0.74) |
Median (IQR) | 4.0 [0.0–7.0] | 3.0 [0.0–5.0] | ||
Cervical spine (0–48) | ||||
Baseline | Mean (SD) | 1.6 ± 3.0 | 1.7 ± 2.3 | 0.87 (0.78–0.93) |
Median (IQR) | 0.5 [0.0–2.0] | 1.0 [0.0–2.0] | ||
2 years | Mean (SD) | 2.8 ± 3.8 | 2.5 ± 3.6 | 0.90 (0.82–0.94) |
Median (IQR) | 1.5 [0.04.0] | 1.0 [0.0–3.0] | ||
Change score (2 years—baseline) | Mean (SD) | 1.1 ± 2.0 | 0.7 ± 2.1 | 0.40 (0.14–0.61) |
Median (IQR) | 0.5 [0.0–2.0] | 0.0 [-1.0–1.0] | ||
Thoracic spine (0–88) | ||||
Baseline | Mean (SD) | 7.1 ± 9.8 | 7.0 ± 8.2 | 0.94 (0.90–0.97) |
Median (IQR) | 3.0 [1.0–11.0] | 4.0 [1.0–11.0] | ||
2 years | Mean (SD) | 9.2 ± 10.6 | 9.2 ± 10.8 | 0.95 (0.92–0.97) |
Median (IQR) | 5.0 [1.0–14.0] | 6.0 [3.0–15.0] | ||
Change score (2 years—baseline) | Mean (SD) | 2.1 ± 4.8 | 2.2 ± 5.3 | 0.51 (0.27–0.69) |
Median (IQR) | 1.0 [0.0–4.0] | 1.0 [0.0–4.0] | ||
Lumbar spine (0–48) | ||||
Baseline | Mean (SD) | 3.0 ± 4.2 | 3.3 ± 4.1 | 0.95 (0.92–0.97) |
Median (IQR) | 1.0 [0.0–5.0] | 2.0 [0.0–5.0] | ||
2 years | Mean (SD) | 3.9 ± 4.2 | 4.1 ± 4.1 | 0.93 (0.87–0.96) |
Median (IQR) | 3.0 [1.0–5.0] | 3.0 [1.0–6.0] | ||
Change score (2 years—baseline) | Mean (SD) | 0.9 ± 1.8 | 0.9 ± 2.1 | 0.55 (0.32–0.72) |
Median (IQR) | 1.0 [0.0–2.0] | 1.0 [0.0–2.0] | ||
