Table 3.
Risk factor | OR | 95% CI | p-value |
---|---|---|---|
Model A | |||
Age | 1.006 | 0.966–1.047 | 0.778 |
BMI (per 1-unit decrease) | 1.165 | 1.046–1.298 | 0.006 |
Sex (female) | 0.659 | 0.191–2.277 | 0.510 |
% of predicted post-bronchodilator FEV1 | 0.993 | 0.970–1.016 | 0.540 |
Model B | |||
Age | 1.006 | 0.966–1.047 | 0.789 |
BMI <23 kg/m2 | 2.960 | 1.410–6.215 | 0.004 |
Sex (female) | 0.566 | 0.163–1.964 | 0.370 |
% of predicted post-bronchodilator FEV1 | 0.996 | 0.973–1.020 | 0.755 |
Notes: Model A is the result of analyzing BMI as a continuous variable. Model B is the result of analyzing BMI as a nominal variable.
Abbreviations: BMI, body mass index; FEV1, forced expiratory volume in 1 second; OR, odds ratio.