Table 1.
Characteristics of Confirmed 2009 H1N1 Case-Patients with Autopsy Samples Evaluated for Pathologic Features
| Characteristic | No. (%) |
|---|---|
| Male patients | 51 (51) |
| Age group | |
| 0–9 | 4 (4) |
| 10–19 | 13 (13) |
| 20–29 | 17 (17) |
| 30–39 | 24 (24) |
| 40–49 | 22 (22) |
| 50–59 | 17 (17) |
| ≥60 | 3 (3) |
| Medical history (n = 93) | |
| At least one pre-existing condition | 79 (85) |
| Obesity* | 43 (46) |
| Extreme obesity* | 16 (17) |
| Cardiovascular disease | 23 (25) |
| Asthma | 20 (22) |
| Diabetes | 12 (13) |
| Pregnancy | 6 (6) |
| HIV infection | 4 (4) |
| Duration of illness, median days (range) | 8 (1–44 days) |
| Clinical symptoms (n = 72) | |
| Fever | 59 (82) |
| Cough | 48 (67) |
| Shortness of breath | 42 (58) |
| Headache | 11 (15) |
| Fatigue/weakness | 10 (14) |
| Sore throat | 11 (15) |
| Vomiting | 16 (22) |
| Diarrhea | 8 (11) |
| Hospitalized (n = 87) | 58 (67) |
| Invasive mechanical ventilation (n = 57) | 42 (74) |
| Antiviral treatment (n = 67) | 44 (66) |
*
Obesity is defined as body mass index ≥30 and extreme obesity as body mass index ≥40.