Table 3.
Comparison of demographic and clinical data between RSV-A and RSV-B positive cases
| Categories | RSV-Aa (N = 273) | RSV-Ba (N = 695) | P value | |
|---|---|---|---|---|
| Sex (male) | 138 (50.5%) | 352 (50.6%) | ns | |
| Age group | 0–6 m | 116/273 (42.5%) | 254/694 (36.6%) | 0.012 |
| 6 m–3 y | 72/273 (26.4%) | 141/694 (20.3%) | ||
| 3 y–16 y | 19/273 (7.0%) | 56/694 (8.1%) | ||
| 16 y–65 y | 15/273 (5.5%) | 77/694 (11.1%) | ||
| 65 y–80 y | 23/273 (8.4%) | 70/694 (10.1%) | ||
| > 80 y | 28/273 (10.2%) | 96/694 (13.8%) | ||
| Median age in years (range) | 0.77 (0.02–98.2) | 1.31 (0.03–98.6) | 0.021 | |
| Pediatric cases (< 16 y) | 207/273 (75.8%) | 451/694 (65.0%) | 0.0015 | |
| Older adults (> 65 y) | 51/273 (18.7%) | 166/694 (23.9%) | 0.078 | |
| Ct valueb | 25.3 ± 6.1 (n = 233) | 26.4 ± 7.1 (n = 462) | 0.054 | |
| Co-infections | 84/242 (34.7%) | 146/618 (23.6%) | < 0.001 | |
| Hospitalized | 255/273 (93.4%) | 652/687 (94.9%) | ns | |
| Intensive care | 25/216 (9.7%) | 56/567 (8.1%) | ns | |
| Diagnosis | Bronchiolitis | 89/165 (53.9%) | 158/327 (48.3%) | ns |
| Bronchopneumonia | 16/165 (9.7%) | 56/327 (17.1%) | ||
| Influenza-like illness | 9/165 (5.5%) | 24/327 (7.3%) | ||
| Other acute respiratory diagnoses | 36/165 (21.8%) | 72/327 (22.0%) | ||
| Other diagnoses | 15/165 (9.1%) | 17/327 (5.2%) | ||
| Fever (T > 37.5 °C) | 107/166 (64.5%) | 179/297 (60.3%) | ns | |
| Cough | 114/155 (73.5%) | 224/263 (85.2%) | 0.005 | |
| Productive cough | 43/114 (37.7%) | 102/224 (45.5%) | 0.013 | |
| SaO2 in room air | > 95% | 53/145 (36.6%) | 118/275 (42.9%) | ns |
| 95–90% | 65/145 (44.8%) | 104/275 (37.8%) | ||
| < 90% | 27/145 (18.6%) | 53/275 (19.3%) | ||
| Antibiotic therapy | 83/151(55.0%) | 165/268 (61.6%) | ns | |
RSV respiratory syncytial virus
aThe number of cases in which information was available is indicated at the denominator
bDiagnostic test cycle threshold (Ct) value is reported as mean ± standard deviation