Table 3.
Characteristics of infants with RSV hospitalization during December 1 to March 31, 2011–2012 season
| Risk factor | Number of infants with RSV hospitalization/total (%) |
|---|---|
| All infants | 7/404 (1.7) |
| GA | |
| <32 | 4/205 (2) |
| 32–35 | 3/199 (1.5) |
| Male | 4/7 (57.1) |
| Female | 3/7 (42.9) |
| Age at enrollment | |
| ≤3 months | 6/278 (2.2) |
| 4–6 months | 1/67 (1.5) |
| 7–12 months | 0/60 |
| ≥12 months | 0/24 |
| Multiple births | 2/218 (0.9) |
| BPD | 2/80 (2.5) |
| CHD | 2/49 (4.1) |
| Presence of siblings | 6/322 (1.9) |
| Sibling in school | 3/168 (1.8) |
Abbreviations: BPD, bronchopulmonary dysplasia; CHD, congenital heart disease; GA, gestational age; RSV, respiratory syncytial virus.