Table 2.
Subgroup analysis of patient series
| Subgroup entity | Case number | Physical examination score | p a | p c | DASH score | p a | p c | VAS of satisfaction (mean ± SD) | p b | ||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Preoperative status (mean ± SD) | Postoperative status (mean ± SD) | Preoperative status (mean ± SD) | Postoperative status (mean ± SD) | ||||||||
| Age, y | 0.067 | 3.44 | 0.11 | ||||||||
| >60 | 12 | 3.3 ± 1.0 | 2.1 ± 1.8 | 0.03 | 29.5 ± 12.9 | 19.0 ± 9.4 | 0.04 | 4.8 ± 3.5 | |||
| ≦60 | 26 | 3.2 ± 1.0 | 1.0 ± 1.5 | <0.01 | 32.9 ± 13.6 | 16.1 ± 14.9 | <0.01 | 6.6 ± 3.4 | |||
| Diabetes mellitus | 0.087 | 0.001 | 0.05 | ||||||||
| Yes | 7 | 3.7 ± 0.8 | 2.6 ± 0.6 | 0.10 | 33.6 ± 8.4 | 31.1 ± 7.3 | 0.74 | 3.9 ± 2.9 | |||
| No | 31 | 3.2 ± 1.0 | 1.1 ± 1.6 | <0.01 | 31.4 ± 14.2 | 13.9 ± 12.4 | <0.01 | 6.5 ± 3.4 | |||
| Additional neurolysis | -- | -- | <0.01 | ||||||||
| Yes | 28 | 3.3 ± 1.0 | 1.9 ± 1.7 | <0.01 | 33.0 ± 10.9 | 20.2 ± 13.7 | <0.01 | 4.9 ± 3.3 | |||
| No | 10 | 3.2 ± 1.0 | 0 | <0.01 | 28.5 ± 18.6 | 8.2 ± 7.4 | <0.01 | 9.2 ± 0.9 | |||
| Symptom duration before surgery, mo | -- | -- | <0.01 | ||||||||
| >3 | 24 | 3.3 ± 1.0 | 2.1 ± 1.7 | <0.01 | 31.2 ± 12.0 | 21.6 ± 14.2 | <0.01 | 4.5 ± 3.4 | |||
| ≦3 | 14 | 3.1 ± 1.0 | 0.1 ± 0.5 | <0.01 | 32.9 ± 15.7 | 9.3 ± 6.9 | <0.01 | 8.7 ± 1.0 | |||
DASH = disabilities of the arm, shoulder, and hand; VAS = visual analog scale.
aWilcoxon Signed-Rank test between preoperative status and postoperative status.
bMann-Whitney U test in subgroup comparison.
cOne-way ANCOVA in subgroup comparison.
dFailed from test of homogeneity.