Change in Ratio of Observed-to-Expected Deaths in Pediatric Patients after Implementing a Closed Policy in an Adult ICU That Admits Children

Table 2

PIM2 score and observed deaths.

	2001–2003	2004–2006	2007–2009
PIM2 score	0.066±0.130	0.114±0.239	0.086±0.147
Observed deaths	19	17	11
Expected deaths	12.75	20.71	13.43
O/E ratio	1.49	0.82	0.82