Table 1.
Baseline characteristics, morbidities, complications, outcomes of respiratory syncytial virus (RSV) and influenza infection cases, 2013-2015
| Variables | Influenza A or B (N = 312) | RSV (N = 87) | P value |
|---|---|---|---|
| Male, n (%) | 153 (49.0) | 47 (54.0) | 0.41 |
| Age (years) mean (SD) | 62.6 (17.1) | 70.0 (12.2) | < 0.01 |
| Resident of long-term care facilities, n (%) | 6 (1.9) | 9 (10.3) | < 0.01 |
| Malignancy, n (%) | 32 (10.3) | 12 (13.8) | 0.35 |
| Congestive heart failure, n (%) | 23 (7.4) | 8 (9.2) | 0.57 |
| Cerebrovascular accident, n (%) | 39 (12.5) | 11 (12.6) | 0.97 |
| Chronic kidney disease, n (%) | 38 (12.2) | 16 (18.4) | 0.13 |
| Diabetes, n (%) | 80 (25.6) | 24 (27.6) | 0.71 |
| Liver disease, n (%) | 25 (8.0) | 7 (8.0) | 0.99 |
| Chronic obstructive pulmonary disease, n (%) | 15 (4.8) | 11 (12.6) | < 0.01 |
| Asthma, n (%) | 20 (6.4) | 3 (3.4) | 0.29 |
| Body temperature > 37.5 °C, n (%) | 110 (35.3) | 17 (19.5) | < 0.01 |
| Pneumonia, n (%) | 78 (25.0) | 34 (39.1) | < 0.01 |
| Respiratory bacterial superinfection, n (%) | 32 (10.3) | 16 (18.4) | 0.05 |
| Hypoxemia, n (%) | 93 (29.8) | 38 (43.7) | 0.01 |
| Mechanical ventilation, n (%) | 7 (2.2) | 3 (3.4) | 0.52 |
| PSI score, mean (SD) | 86.5 (34.9) | 107.5 (30.0) | < 0.01 |
| Twenty-day all-cause mortality (%) | 21 (6.7) | 16 (18.4) | < 0.01 |
| Sixty-day all-cause mortality (%) | 38 (12.2) | 22 (25.3) | < 0.01 |
PSI pneumonia severity index, SD standard deviation
PSI was calculated in all patients with or without pneumonia
The body temperature was imputed for 52 patients