Table 2.
Questionnaire scores for the two repeated assessments <2 weeks apart (n=39)
| Parameter/questionnaire | Trial 1 mean (SD) | Trial 2 mean (SD) | Comparison trial 1 versus trial 2 P value | ICC (95% CI) | SEM (95% CI) | SEM as percentage of mean scorea |
|---|---|---|---|---|---|---|
| Oswestry (score range, 0–100) | 36.2 (15.9) | 37.4 (16.2) | 0.12 | 0.96 (0.93–0.98) | 3.4 (2.8–4.4) | 9.2 |
| Roland Morris (score range, 0–24) | 12.4 (5.3) | 12.3 (5.6) | 0.86 | 0.94 (0.90–0.97) | 1.3 (1.1–1.7) | 10.5 |
| VAS pain intensity (score range, 0–10) | 6.0 (2.1) | 6.1 (2.1) | 0.47 | 0.86 (0.75–0.92) | 0.8 (0.6–1.0) | 13.2 |
| VAS general health (score range, 0–10) | 4.9 (2.5) | 5.2 (2.1) | 0.17 | 0.85 (0.73–0.92) | 0.9 (0.7–1.1) | 17.8 |
aMean of trials 1 and 2