Risk comparison for RSV hospitalisation in children with and without CHD as assessed in 2 different studies
| Study | Parameter* | Age group | |||
|---|---|---|---|---|---|
| <6 mth | <12 mth | 12–24 mth | <24 mth | ||
| *Per 100 child-years; 95% confidence intervals are given in parentheses. | |||||
| †Hospitalisation rates for non-CHD patients and confidence intervals were calculated using raw data provided in the report. | |||||
| ‡p values for comparison of relative risks between the two study populations for the age groups <6 months, <12 months, 12–24 months, and <24 months were 0.45, 0.43, 0.70, and 0.51, respectively (test for homogeneity). | |||||
| This study | Hospitalisation rate | ||||
| CHD patients | 2.5 (0.8 to 5.6) | 2.0 (0.9 to 3.8) | 0.5 (0.1 to 1.8) | 1.3 (0.6 to 2.3) | |
| Non-CHD patients | 1.8 (1.6 to 2.0) | 1.2 (1.1 to 1.3) | 0.2 (0.16 to 0.23) | 0.7 (0.6 to 0.8) | |
| Relative risk | 1.4 (0.6 to 3.1)‡ | 1.6 (0.8 to 3.2)‡ | 2.7 (0.7 to 9.7)‡ | 1.8 (1.0 to 3.3)‡ | |
| Ref. 4† | Hospitalisation rate | ||||
| CHD patients | 12.1 (10.1 to 14.3) | 9.3 (8.0 to 10.7) | 1.8 (1.2 to 2.7) | 6.1 (5.3 to 7.0) | |
| Non-CHD patients | 5.5 (5.3 to 5.7) | 4.1 (3.9 to 4.2) | 0.8 (0.7 to 0.9) | 2.7 (2.6 to 2.8) | |
| Relative risk | 2.2 (1.8 to 2.6)‡ | 2.3 (1.9 to 2.6)‡ | 2.4 (1.6 to 3.7)‡ | 2.2 (1.9 to 2.6)‡ | |