Table 3.
Injury to the radial nerve in relation to the site, pattern and mechanism of humeral shaft fractures and analysed with multivariable logistic regression analysis (95% confidence interval [CI])
| Factors | Radial nerve injury/total | % | Odds ratio |
|---|---|---|---|
| Fracture position | |||
| Proximal | 1/13 | 8% | 1 (reference) |
| Middle | 6/70 | 9% | 0.6 (0.05∼6.71) |
| Distal | 5/23 | 22% | 1.9 (0.15∼23.69) |
| Injury mechanism | |||
| Low-energy | 1/16 | 6% | 1 (reference) |
| High-energy | 11/90 | 12% | 3.3 (0.37∼30.30 ) |
| OTA/AO fracture type | |||
| A | 11/74 | 15% | 1 (reference) |
| B | 1/28 | 4% | 0.2(0.02∼1.43) |
| C | 0 /4 | 0% | – |
-: the effect cannot be estimated due to zero cases