Table 2.
Incidences of RSV hospitalization in children aged <5 years in NSW, 2001–2010
| Cohort | Number of RSV-coded hospitalizations | Person-years | IR/1000 child-years (95% CI) |
|---|---|---|---|
| 0–3 months | |||
| Indigenous children | 392 | 6793 | 58·0 (49·5–60·5) |
| High-risk children | 105 | 833 | 126·0 (103·0–152·5) |
| Healthy children | 287 | 5960 | 48·0 (42·7–54·0) |
| Children with BPD | 3 | 13 | 239·0 (47·5–674·4) |
| Children with GA 32–36 weeks | 539 | 9200 | 58·5 (53·7–63·7) |
| Children with GA 29–31 weeks | 62 | 1052 | 173 (133–75·5) |
| Children with GA ⩽28 weeks | 0 | 30 | 0 |
| Term children with low birthweight | 145 | 3402 | 42·6 (36·0–50·0) |
| All other term healthy children | 4579 | 178 525 | 25·6 (23·9–25·3) |
| 4–6 months | |||
| Indigenous children | 348 | 6478 | 53·7 (48·2–59·6) |
| High-risk children | 80 | 837 | 95·5 (75·7–119·0) |
| Healthy children | 268 | 5640 | 47·5 (42·0–53·5) |
| Children with BPD | 38 | 138 | 275·0 (194·8–378·0) |
| Children with GA 32–36 weeks | 367 | 9106 | 40·0 (36·2–44·6) |
| Children with GA 28–31 weeks | 89 | 638 | 139·4 (112·0–171·6) |
| Children with GA<28 weeks | 27 | 132 | 205·0 (134·7–297·6) |
| Term children with low birthweight | 92 | 3275 | 28·0 (22·6–34·5) |
| All other term healthy children | 2869 | 171 202 | 16·7 (16·2–17·4) |
| 7–11 months | |||
| Indigenous children | 268 | 27 178 | 9·8 (8·7–11·1) |
| High-risk children | 69 | 3856 | 17·8 (14·0–22·6) |
| Healthy children | 199 | 23 322 | 8·5 (7·4–9·8) |
| Children with BPD | 71 | 733 | 96·8 (75·6–122·2) |
| Children with GA 32–36 weeks | 378 | 36 663 | 10·3 (9·3–11·4) |
| Children with GA 28–31 weeks | 88 | 3,269 | 27·0 (21·5–33·0) |
| Children with GA<28 weeks | 34 | 631 | 53·8 (37·3–75·2) |
| Term children with low birthweight | 79 | 12 253 | 6·4 (5·0–8·0) |
| All other term healthy children | 289 | 617 877 | 4·7 (4·5–4·8) |
| 12–24 months | |||
| Indigenous children | 114 | 22 288 | 5·0 (4·2–6·0) |
| High-risk children | 38 | 3036 | 12·5 (8·8–17·2) |
| Healthy children | 76 | 19 251 | 4·0 (3·0–5·0) |
| Children with BPD | 69 | 712 | 96·8 (75·4–122·6) |
| Children with GA 32–36 weeks | 210 | 31 302 | 6·7 (5·8–7·7) |
| Children with GA 28–31 weeks | 31 | 2414 | 12·8 (8·7–18·2) |
| Children with GA<28 weeks | 14 | 471 | 29·7 (16·2–49·8) |
| Term children with low birthweight | 52 | 11 403 | 4·5 (3·4–5·0) |
| All other term healthy children | 1643 | 583 872 | 2·8 (2·7–2·9) |
| 2–<5 years | |||
| Indigenous children | 16 | 44 603 | 0·35 (0·2–0·6) |
| High-risk children | 4 | 5614 | 0·7 (0·02–2·0) |
| Healthy children | 12 | 38 988 | 0·3 (0·2–0·5) |
| Children with BPD | 21 | 893 | 23·5 (14·5–36·0) |
| Children with GA 32–36 weeks | 54 | 66 076 | 0·8 (0·6–1·0) |
| Children with GA 28–31 weeks | 17 | 3986 | 4·2 (0·8–12·0) |
| Children with GA<28 weeks | 3 | 719 | 0·5 (0·01–1) |
| Term children with low birthweight | 10 | 41 299 | 0·4 (0·2–0·7) |
| All other term healthy children | 385 | 1 378 996 | 0·27 (0·25–0·31) |
BPD, Bronchopulmonary dysplasia; CI, confidence interval; GA, gestational age, IR, incidence rate; RSV, respiratory syncytial virus.