Table 1.
Clinical outcomes of patients with AECOPD hospitalized during and outside influenza season
| Variable | AECOPD during influenza season | AECOPD outside influenza season | OR/MD | p |
|---|---|---|---|---|
| Cases, n | 26,616 | 42,442 | ||
| Age distribution | n (%) | n (%) | < 0.001 | |
| 40–44 years | 131 (0.5) | 285 (0.7) | ||
| 45–49 years | 433 (1.6) | 711 (1.7) | ||
| 50–54 years | 868 (3.3) | 1512 (3.6) | ||
| 55–59 years | 1666 (6.3) | 2831 (6.7) | ||
| 60–64 years | 2619 (9.8) | 4219 (9.9) | ||
| 65–69 years | 3823 (14.4) | 6098 (14.4) | ||
| 70–74 years | 4592 (17.3) | 7619 (18.0) | ||
| 75–79 years | 4700 (17.7) | 7347 (17.3) | ||
| 80–84 years | 4242 (15.9) | 6588 (15.5) | ||
| 85–89 years | 2586 (9.7) | 3827 (9.0) | ||
| 90–94 years | 819 (3.1) | 1247 (2.9) | ||
| 95 + years | 137 (0.5) | 158 (0.4) | ||
| Female, % | 46 | 45 | OR: 1.02 | 0.209 |
| (95% CI 0.99–1.05) | ||||
| Outcomes | ||||
| Mean LOS, days | 11.3 | 11.6 | Adj. MD: − 0.31 | < 0.001 |
| (95% CI: − 0.48 to − 0.14) | ||||
| In-hospital mortality, % | 5.6 | 5.4 | Adj. OR: 1.03 | 0.751 |
| (95% CI 0.96–1.10) | ||||
| Risk of re-hospitalization, % | 33 | 31 | Adj. OR: 1.13 | < 0.001 |
| (95% CI 1.10–1.17) | ||||
| Aspergillosis, % | 0.1 | 0.2 | Adj. OR 0.72 | 0.289 |
| (95% CI 0.49–1.07) | ||||
OR odds ratio; MD mean difference; p p value; CI confidence interval