Table S2.
Logistic regression model of all covariates, with the presence of a fracture as outcome
| Variable | Odds ratio | 95% CI for odds ratio | P-value |
|---|---|---|---|
| Age (years) | 1.00 | 0.96–1.04 | 0.95 |
| BMI (kg/m2) | 0.94 | 0.88–1.02 | 0.12 |
| Pack-years | 0.99 | 0.98–1.01 | 0.39 |
| Smoking status | 1.71 | 1.06–2.78 | 0.03 |
| Bone density | 0.99 | 0.98–0.99 | <0.001 |
| FEV1 % predicted | 1.01 | 1.00–1.03 | 0.13 |
| COPD status | 1.11 | 0.63–1.96 | 0.72 |
| Perc15 | 1.00 | 0.98–1.01 | 0.47 |
| E/I-ratioMLD | 1.01 | 0.97–1.06 | 0.52 |
| Pi10 | 1.55 | 0.87–2.75 | 0.14 |
| TI | 1.05 | 0.11–9.82 | 0.97 |
Abbreviations: BMI, body mass index; CI, confidence interval; E/I-ratioMLD, expiration to inspiration ratio of mean lung density; FEV1, forced expiratory volume in 1 second; Perc15, emphysema score as 15th percentile of attenuation distribution curve on inspiratory scan; Pi10, airway wall thickness at an internal perimeter of 10 mm; TI, tracheal index.