Table 4.
Hazard ratios and p values for significant covariates in the multivariate Cox analysis of risk factors for pneumonia in Asia and the non-Asia regions
| Asia | Non-Asia | |||
|---|---|---|---|---|
| HR | p value | HR | p value | |
| Age (per 10 years) | 1.50 (1.24, 1.82) | < 0.001 | 1.40 (1.25, 1.58) | < 0.001 |
| BMI | ||||
|
21 – < 25 vs. < 21 kg/m2 21 – < 25 vs. ≥ 25 kg/m2 < 21 vs. ≥ 25 kg/m2 |
0.70 (0.52, 0.95) 1.24 (0.82, 1.89) 1.77 (1.19, 2.65) |
0.007 |
0.95 (0.71, 1.27) 1.25 (1.01, 1.54) 1.31 (1.01, 1.70) |
0.036 |
| Predicted FEV1 (%) (< 50% vs. ≥ 50%) | 1.78 (1.27, 2.51) | < 0.001 | 1.37 (1.10, 1.69) | 0.004 |
| Neutrophils (109/l) (per 1 × 109/l unit increase) | 1.05 (0.98, 1.12) | NS | 1.05 (1.01, 1.10) | 0.019 |
| History of pneumonia (yes vs. no) | 2.40 (1.80, 3.20) | < 0.001 | 2.19 (1.83, 2.63) | < 0.001 |
| ICS treatment (yes vs. no) | 2.59 (1.65, 4.07) | < 0.001 | 1.32 (1.03, 1.69) | 0.027 |
BMI body mass index, FEV1 forced expiratory volume in 1 s, HR hazard ratio, ICS inhaled corticosteroid