Table 3.
Risk of hospital admission: simple scoring system
| Number of predictors | Hospitalised children | Non-hospitalised children |
Risk of hospital admission*† |
||
|---|---|---|---|---|---|
| Risk percentage | 95% CI | ||||
| Very low risk | 0 to 1 | 17 (22%) | 5576 (68%) | 0·3% (1 in 328) | 0·2%–0·4% |
| Normal risk | 2 to 3 | 37 (47%) | 2483 (30%) | 1·5% (1 in 68) | 1·0%–1·9% |
| High risk | 4 or more | 24 (31%) | 180 (2%) | 11·8% (1 in 8·5) | 7·3%–16·2% |
| Total | 78 (100%) | 8239 (100%) | 0·9% (1 in 106) | 0·7%–1·2% | |
*
Risk of hospital admission using Wald estimates were 0·2% (or 1 in 449) for the very low risk group, 1·0% (or 1 in 104) for the normal risk group, and 4·3% (or 1 in 23) for the high risk group.
†
The sensitivity and specificity using the cutoff of (normal or high risk) versus (very low risk) were 78·2% and 67·7%. The sensitivity and specificity using the cutoff (high risk) versus (normal or very low risk) were 30·8% and 97·8%.