TABLE 1.
Demographics and baseline characteristics of RSV‐positive and RSV‐negative children. Variables with a * have a statistically significant difference between RSV‐positive and RSV‐negative groups.
| Patient characteristics | Number of RSV‐positive children (n = 246) | Number of RSV‐negative children (n = 404) | Total (n = 650) |
|---|---|---|---|
|
Age in months* (median, IQR) (mean, SD) |
12.5 (6–22) | 16.5 (8–30.25) | 15 (8–28) |
| 16.43 ± 13.53 | 21.32 ± 16.35 | 19.47 ± 15.52 | |
| Age groups (n, %) | |||
| 0–5 months | 52 (21.1%) | 67 (16.6%) | 119 (18.3%) |
| 6–11 months | 61 (24.8%) | 71 (17.6%) | 132 (20.3%) |
| 0–11 months* | 113 (46%) | 138 (34.1%) | 251 (38.6%) |
| 12–23 months | 74 (30%) | 121 (30%) | 195 (30%) |
| 24–59 months* | 59 (24%) | 145 (35.9%) | 204 (31.4%) |
|
Birth weight gr. (median, IQR) (mean, SD) |
3270 (3000–3555) | 3210 (2900–3506) | 3240 (2950–3548) |
| 3251 ± 547 | 3186 ± 547 | 3212 ± 548 | |
| Boys (n, %) | 125 (50.8%) | 202 (50%) | 327 (50.3%) |
| Prematurity (n, %) | 14 (5.7%) | 38 (9.4%) | 66 (10.1%) |
| Presence of chronic condition (n, %) | |||
| Respiratory disease | 9 (3.7%) | 15 (3.7%) | 26 (4%) |
| Congenital heart disease | 4 (1.6%) | 1 (0.2%) | 5 (0.8%) |
| Immunocompromised | 1 (0.4%) | 1 (0.2%) | 2 (0.3%) |
| Atopy | 26 (10.6%) | 37 (9.1%) | 63 (9.7%) |
| Vaccination status (n, %) | |||
| Influenza vaccination this season (n, %) | 48 (19.5%) | 97 (24%) | 145 (22.3%) |
| RSV subtype | |||
| RSV‐A | 59 (24%) | 0 | 59 (9.1%) |
| RSV‐B | 161 (65.4%) | 0 | 161 (24.7%) |
| RSV‐A + RSV‐B | 2 (0.8%) | 0 | 2 (0.3%) |
| Not available | 24 (9.8%) | 0 | 24 (3.7%) |