Table 4.
Subgroup analysis between TG and lumbar BMD.
| Subgroup | N | Lumbar BMDa β (95% CI) P-value |
P-value for interaction |
|---|---|---|---|
| Age, years, N (%) | 0.835 | ||
| Low | 397 | 0.012 (-0.006, 0.030) 0.202 | |
| High | 362 | 0.018 (-0.002, 0.038) 0.083 | |
| Sex, N (%) | 0.586 | ||
| Female | 550 | 0.012 (-0.004, 0.027) 0.141 | |
| Male | 209 | 0.020 (-0.010, 0.043) 0.225 | |
| BMI, kg/m2, N (%) | 0.815 | ||
| Low | 378 | 0.019 (-0.001, 0.038) 0.061 | |
| High | 381 | 0.013 (-0.006, 0.032) 0.181 | |
| Magnesium, mmol/L | 0.651 | ||
| Low | 344 | 0.009 (-0.012, 0.030) 0.402 | |
| High | 415 | 0.020 (0.003, 0.038) 0.025 | |
| Sodium, mmol/L | 0.748 | ||
| Low | 341 | 0.013 (-0.007, 0.034) 0.208 | |
| High | 418 | 0.018 (0.000, 0.036) 0.048 | |
| Phosphorus, mmol/L | 0.159 | ||
| Low | 367 | 0.027 (0.006, 0.048) 0.014 | |
| High | 392 | 0.006 (-0.011, 0.023) 0.501 | |
| Platelet, ×109/L | 0.651 | ||
| Low | 379 | 0.014 (-0.007, 0.034) 0.201 | |
| High | 378 | 0.015 (-0.003, 0.033) 0.102 | |
| Neutrophil, ×109/L | 0.569 | ||
| Low | 399 | 0.020 (0.001, 0.039) 0.043 | |
| High | 358 | 0.008 (-0.011, 0.027) 0.414 | |
| Monocyte, ×109/L | 0.052 | ||
| Low | 378 | 0.004 (-0.014, 0.022) 0.685 | |
| High | 379 | 0.030 (0.010, 0.050) 0.004 | |
| Apolipoprotein A, g/L | 0.509 | ||
| Low | 365 | 0.018 (-0.004, 0.039) 0.107 | |
| High | 394 | 0.012 (-0.005, 0.030) 0.175 | |
| CR, umol/L | 0.041 | ||
| Low | 375 | 0.033 (0.013, 0.054) 0.001 | |
| High | 384 | -0.000 (-0.018, 0.018) 0.975 | |
| UA, umol/L | 0.007 | ||
| Low | 377 | 0.041 (0.020, 0.063) < 0.001 | |
| High | 382 | 0.002 (-0.019, 0.014) 0.801 | |
| ASA score, N (%) | 0.671 | ||
| 1 | 67 | 0.034 (-0.008, 0.075) 0.112 | |
| 2 | 521 | 0.011 (-0.005, 0.027) 0.164 | |
| ≥3 | 171 | 0.023 (-0.008, 0.055) 0.153 | |
| Fracture category, N (%) | 0.303 | ||
| Thoracic vertebra | 149 | 0.006 (-0.026, 0.039) 0.706 | |
| Lumbar vertebra | 293 | 0.004 (-0.017, 0.025) 0.710 | |
| Wrist | 17 | 0.111 (0.012, 0.210) 0.273 | |
| Proximal humerus | 57 | 0.002 (-0.041, 0.046) 0.920 | |
| Thighbone | 243 | 0.039 (0.014, 0.064) 0.003 |
aPatients were stratified based on age; sex; BMI; magnesium; sodium; phosphorus; platelet; neutrophil; monocyte; apolipoprotein A; CR; UA; ASA; fracture category, and additional covariates not included in the stratification were adjusted for in the analysis.
Abbreviations: CI, confidence interval; BMI, body mass index; CR, creatinine; UA, uric acid; TG, triglycerides; BMD, bone mineral density; ASA, American Society of Anesthesiologists.