Table 3 Clinical course and outcomes among adults hospitalized with laboratory-confirmed influenza with and without pneumonia, Emerging Infections Program, 2005–2008 (n = 4765)
Outcome | Patients with pneumonia n = 1392; no. (%) | Patients without pneumonia n = 3373; no. (%) | Unadjusted odds ratio (95 % CI) | Adjusted odds ratioa (95 % CI) |
|---|---|---|---|---|
Length of stay >7 days | 414 (30) | 408 (12) | 3.06 (2.62–3.57) | 2.99 (2.54–3.53) |
Intensive Care Unit | 370 (27) | 329 (10) | 3.34 (2.83–3.94) | 3.62 (3.04–4.32) |
Mechanical ventilation | 254 (18) | 162 (5) | 4.38 (3.56–5.39) | 4.79 (3.82–6.01) |
Death | 120 (9) | 55 (2) | 5.69 (4.11–7.88) | 6.06 (4.21–8.71) |