Table 3.
Impact of comorbidities on empyema among COPD patients (n=55,136)
| Comorbidity | Number (%) | Event | aHR (95% CI) | P-value |
|---|---|---|---|---|
| No comorbidity | 20,285 (36.8) | 126 | – | – |
| Diabetes only | 1,596 (2.9) | 16 | 1.65 (0.98–2.78) | 0.06 |
| Hypertension only | 10,271 (18.6) | 68 | 1.05 (0.78–1.42) | 0.73 |
| Chronic liver disease only | 1,788 (3.2) | 14 | 1.24 (0.72–2.16) | 0.44 |
| Stroke only | 1,612 (2.9) | 17 | 1.88 (1.13–3.11) | 0.02 |
| Cancer only | 271 (0.5) | 5 | 4.84 (1.97–11.8) | 0.001 |
| Chronic renal disease only | 153 (0.3) | 3 | 3.90 (1.24–12.3) | 0.02 |
| ≥1 comorbidity | 34,851 (63.2) | 260 | 1.25 (1.01–1.55) | 0.04 |
| ≥2 comorbidities | 17,152 (31.1) | 129 | 1.29 (1.01–1.65) | 0.04 |
| ≥3 comorbidities | 6,057 (11.0) | 53 | 1.54 (1.11–2.12) | 0.01 |
Abbreviation: aHR, adjusted hazard ratio.