Table 2 Agreement between directly derived and prorated scores of the satisfaction with life scale in the overall sample and within TBI, SCI, and burn injury subsamples
4-Item SWL Score (a) | Direct 5-Item SWL Score (b) | Prorated 5-Item SWL Score (c) | Score Difference (b-c) | Absolute value of difference (|b-c|) | Correlation (b with c) | ICC (3,1) (b with c) | ||
|---|---|---|---|---|---|---|---|---|
n | Mean (SD) | Mean (SD) | Mean (SD) | Mean (SD) | Mean (SD) | ICC (95% CI) | ||
Overall Sample | 17,897 | 16.4 (6.9) | 20.1 (8.2) | 20.5 (8.6) | −0.39 (1.95) | 1.46 (1.35) | 0.97 | 0.97 (0.97–0.97) |
Spinal Cord Injury | 8566 | 15.2 (6.7) | 18.8 (7.9) | 19.0 (8.3) | −0.23 (1.96) | 1.45 (1.35) | 0.97 | 0.97 (0.97–0.97) |
Traumatic Brain Injury | 7941 | 17.4 (6.9) | 21.2 (8.2) | 21.7 (8.6) | −0.54 (1.97) | 1.52 (1.37) | 0.97 | 0.97 (0.97–0.97) |
Burn Injury | 1390 | 18.2 (7.0) | 22.2 (8.5) | 22.8 (8.7) | −0.53 (1.66) | 1.20 (1.26) | 0.98 | 0.98 (0.98–0.98) |