Table 2.
Univariate analysis for lumbar BMD.
| Characteristics | Statisticsa | Lumbar BMD β (95%CI) P-value |
|---|---|---|
| Age, years | 68.87 ± 10.55 | -0.004 (-0.005, -0.003) < 0.001 |
| BMI, kg/m2 | 22.95 ± 3.30 | 0.011 (0.008, 0.014) < 0.001 |
| Magnesium, mmol/L | 0.89 ± 0.10 | 0.073 (-0.031, 0.177) 0.169 |
| Sodium, mmol/L | 140.99 ± 2.93 | -0.003 (-0.007, 0.000) 0.061 |
| Phosphorus, mmol/L | 1.08 ± 0.20 | -0.007 (-0.059, 0.046) 0.803 |
| Platelet, ×109/L | 175.62 ± 63.95 | 0.000 (-0.000, 0.000) 0.962 |
| Neutrophil, ×109/L | 6.41 ± 3.15 | 0.001 (-0.002, 0.005) 0.435 |
| Monocyte, ×109/L | 0.49 ± 0.24 | 0.002 (-0.041, 0.045) 0.925 |
| Apolipoprotein A, g/L | 1.20 ± 0.23 | 0.072 (0.027, 0.116) 0.002 |
| CR, umol/L | 67.63 ± 31.92 | -0.000 (-0.001, -0.000) 0.017 |
| UA, umol/L | 282.78 ± 96.00 | 0.000 (-0.000, 0.000) 0.475 |
| TG, mmol/L | 1.21 ± 0.72 | 0.016 (0.002, 0.030) 0.029 |
| Sex, N (%) | ||
| Female | 55 (72.46%) | Reference |
| Male | 209 (27.54%) | 0.124 (0.102, 0.145) < 0.001 |
| ASA score, N (%) | ||
| 1 | 67 (8.83%) | Reference |
| 2 | 521 (68.64%) | -0.066 (-0.102, -0.029) < 0.001 |
| ≥ 3 | 171 (22.53%) | -0.106 (-0.147, -0.065) < 0.001 |
| Fracture category, N (%) | ||
| Thoracic vertebra | 149 (19.63%) | Reference |
| Lumbar vertebra | 293 (38.60%) | 0.040 (0.011, 0.068) 0.007 |
| Wrist | 17 (2.24%) | 0.078 (0.005, 0.151) 0.036 |
| Proximal humerus | 57 (7.51%) | 0.063 (0.019, 0.108) 0.005 |
| Thighbone | 243 (32.02%) | 0.036 (0.007, 0.066) 0.017 |
aFor continuous variables.
bThe dependent variable was bone turnover markers and β is the result of univariate analysis for lumbar BMD.
Abbreviations: TG, triglycerides; BMD, bone mineral density; BMI, body mass index; CR, creatinine; UA, uric acid; ASA, American Society of Anesthesiologists.