Table 2.
Univariate and multivariate logistic regression analysis
| Characteristic | Univariable | Multivariable | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| N | Event N | OR | 95% CI | P-value | N | Event N | OR | 95% CI | P-value | |
| Age (years) | 526 | 43 | 1.07 | 1.02, 1.12 | 0.005 | 526 | 43 | 1.03 | 0.98, 1.09 | 0.220 |
| Gender | ||||||||||
| Female | 368 | 29 | — | — | 368 | 29 | — | — | ||
| Male | 158 | 14 | 1.14 | 0.58, 2.21 | 0.707 | 158 | 14 | 1.12 | 0.51, 2.46 | 0.787 |
| BMI (kg/m2) | ||||||||||
| < 18.5 | 405 | 33 | — | — | 405 | 33 | — | — | ||
| ≥ 25 | 40 | 8 | 2.82 | 1.20, 6.61 | 0.017 | 40 | 8 | 1.98 | 0.78, 5.04 | 0.153 |
| 18.5–25 | 81 | 2 | 0.29 | 0.07, 1.21 | 0.090 | 81 | 2 | 0.26 | 0.06, 1.15 | 0.076 |
| Type of fracture | ||||||||||
| Femoral neck fracture | 315 | 23 | — | — | 315 | 23 | — | — | ||
| Intertrochanteric fracture | 211 | 20 | 1.33 | 0.71, 2.49 | 0.373 | 211 | 20 | 0.90 | 0.22, 3.68 | 0.887 |
| Operation type | ||||||||||
| Arthroplasty | 254 | 20 | — | — | 254 | 20 | — | — | ||
| Internal fixation | 272 | 23 | 1.08 | 0.58, 2.02 | 0.808 | 272 | 23 | 0.81 | 0.22, 3.02 | 0.754 |
| Hypertension | ||||||||||
| No | 243 | 20 | — | — | ||||||
| Yes | 283 | 23 | 0.99 | 0.53, 1.84 | 0.966 | |||||
| Diabetes | ||||||||||
| No | 421 | 28 | — | — | 421 | 28 | — | — | ||
| Yes | 105 | 15 | 2.34 | 1.20, 4.56 | 0.013 | 105 | 15 | 2.83 | 1.38, 5.81 | 0.005 |
| CVD | ||||||||||
| No | 480 | 38 | — | — | ||||||
| Yes | 46 | 5 | 1.42 | 0.53, 3.80 | 0.487 | |||||
| CRD | ||||||||||
| No | 501 | 40 | — | — | ||||||
| Yes | 25 | 3 | 1.57 | 0.45, 5.48 | 0.478 | |||||
| Denosumab treatment | ||||||||||
| No | 221 | 20 | — | — | ||||||
| Yes | 305 | 23 | 0.82 | 0.44, 1.53 | 0.534 | |||||
| Hb (g/L) | 526 | 43 | 0.97 | 0.96, 0.99 | 0.004 | 526 | 43 | 0.99 | 0.93, 1.04 | 0.602 |
RBC (
/L)
|
526 | 43 | 0.51 | 0.30, 0.85 | 0.010 | 526 | 43 | 1.00 | 0.22, 4.60 | 0.995 |
PLT (
/L)
|
526 | 43 | 1.00 | 1.00, 1.01 | 0.166 | |||||
| ALT (U/L) | 526 | 43 | 1.00 | 0.98, 1.02 | 0.850 | |||||
| AST (U/L) | 526 | 43 | 1.02 | 0.99, 1.04 | 0.143 | |||||
| Serum calcium (mmol/L) | 526 | 43 | 0.05 | 0.00, 1.02 | 0.052 | |||||
| Serum phosphorus (mmol/L) | 526 | 43 | 1.89 | 0.44, 8.10 | 0.391 | |||||
| TG (mmol/L) | 526 | 43 | 0.80 | 0.42, 1.54 | 0.507 | |||||
| HDL-C (mmol/L) | 526 | 43 | 0.64 | 0.23, 1.77 | 0.391 | |||||
| Glucose (mmol/L) | 526 | 43 | 0.99 | 0.85, 1.16 | 0.901 | |||||
| Length of hospital stay (days) | 526 | 43 | 1.04 | 0.98, 1.10 | 0.166 | |||||
| Anesthesia time (minutes) | 526 | 43 | 1.00 | 0.99, 1.01 | 0.829 | |||||
| ASA | ||||||||||
| I | 28 | 4 | — | — | ||||||
| II | 406 | 25 | 0.39 | 0.13, 1.22 | 0.107 | |||||
| III | 88 | 14 | 1.14 | 0.34, 3.78 | 0.836 | |||||
| IV | 4 | 0 | 0.00 | 0.00, Inf | 0.985 | |||||
| Perioperative thrombosis | ||||||||||
| No | 470 | 40 | — | — | ||||||
| Yes | 56 | 3 | 0.61 | 0.18, 2.04 | 0.420 | |||||
| Pneumonia | ||||||||||
| No | 503 | 40 | — | — | ||||||
| Yes | 23 | 3 | 1.74 | 0.49, 6.10 | 0.389 | |||||
| Refracture | ||||||||||
| No | 437 | 31 | — | — | 437 | 31 | — | — | ||
| Yes | 89 | 12 | 2.04 | 1.00, 4.15 | 0.049 | 89 | 12 | 2.35 | 1.10, 5.03 | 0.027 |
| PNI | 526 | 43 | 0.86 | 0.80, 0.94 | < 0.001 | 526 | 43 | 0.90 | 0.82, 0.99 | 0.026 |