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. 2022 Jan 29;50(3):699–707. doi: 10.1007/s15010-021-01743-1

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