Table 1.
The Univariate analysis of all factors
| Infection Group(N = 24) | Non-infection Group(N = 278) | Statistics | p value | |
|---|---|---|---|---|
| Age(years) | 43.125 ± 16.028 | 48.115 ± 15.126 | −1.543 | 0.124 |
| Sex | ||||
| Male | 14 | 163 | 0.001 | 0.977 |
| Female | 10 | 115 | ||
| Injury reason | ||||
| Falling | 13 | 163 | 3.289 | 0.193 |
| Accident | 3 | 62 | ||
| Squeezing | 8 | 53 | ||
| Sanders type | ||||
| II | 6 | 102 | 2.431 | 0.297 |
| III | 11 | 127 | ||
| IV | 7 | 49 | ||
| Blister | ||||
| Yes | 13 | 145 | 0.036 | 0.850 |
| No | 11 | 133 | ||
| Smoking | ||||
| Yes | 10 | 123 | 0.06 | 0.807 |
| No | 14 | 155 | ||
| Diabetes | ||||
| Yes | 12 | 80 | 4.698 | 0.03 |
| No | 12 | 198 | ||
| Preoperative hemoglobin | 33.792 ± 3.878 | 41.374 ± 4.986 | −7.258 | <0.001 |
| Preoperative albumin | 110.750 ± 6.173 | 115.252 ± 8.930 | −2.418 | 0.016 |
| Anesthesia | ||||
| Generl anesthesia | 11 | 102 | 0.789 | 0.375 |
| Lumbar anesthesia | 13 | 176 | ||
| Time from injury to operation | 11.042 ± 3.085 | 13.407 ± 2.242 | −4.795 | <0.001 |
| Operation Time(minutes) | 95.410 ± 8.871 | 77.917 ± 5.941 | −9.471 | <0.001 |
| Bone graft | ||||
| Yes | 17 | 182 | 1.863 | 0.172 |
| No | 7 | 96 | ||