TABLE 3.

Mortality observed and predicted per category of predicted risk for the Pediatric Risk of Mortality III^*.

Categories of risk predicted by the PRISM III	Number of patients in category of predicted risk	Observed mortality, n (%)	Mortality predicted by the PRISM III, n (%)	P-value
0.00–0.19%	624	3 (0.48%)	0.85 (0.14%)	0.020
0.20–0.30%	417	4 (0.96%)	1.17 (0.28%)	0.009
0.31– 0.49%	427	12 (2.81%)	1.72 (0.40%)	<0.001
0.50–0.66%	478	18 (3.77%)	2.74 (0.57%)	<0.001
0.67–1.3%	513	29 (5.65%)	4.93 (0.96%)	<0.001
1.31–3.25%	490	44 (8.98%)	10.24 (2.09%)	<0.001
3.26–100%	447	112 (25.06%)	63.31 (14.16%)	<0.001
Total	3,396	222 (6.54%)	84.96 (2.50%)	<0.001

*χ²: 435.44; 5 degrees of freedom; P < 0.001. PRISM, Pediatric Risk of Mortality.