Anticipated resource utilization for injury versus non-injury pediatric visits to emergency departments

Table 2 ED stay characteristics based on Maximum Abbreviated Injury Scale (MAIS) score

Total injury visits	ED stay characteristic	Visits without MAIS mapping determine		MAIS^a 1	MAIS 2	MAIS 3	MAIS 4	MAIS 5	MAIS 6	Statistic^b
		E-code without injury ICD-9	ICD-9 with insufficient detail to be mapped	MAIS^a 1	MAIS 2	MAIS 3	MAIS 4	MAIS 5	MAIS 6	Statistic^b
		n = 65,176	n = 109,195	n = 451,753	n = 120,183	n = 16,227	n = 914	n = 236	n = 49
N = 763,733	% of all patients	8.5	14.3	59.2	15.7	2.1	0.1	0.03	0.01	---------
	LOS (mean)^c	213.6	153.2	149.0	230.1	423.7	459.1	554.4	374.8	<0.001
	LOS (median)^d	138.0	113.0	120.0	166.0	232.0	176.5	204.0	151.5	<0.001
	% admitted	14.2	5.9	2.6	17.6	79.2	89.2	90.0	42.9	<0.001
	% transferred	1.4	0.2	0.2	0.6	0.9	1.0	1.7	2.0	<0.001
	% died in ED	0.2	0.1	<0.1	<0.1	0.2	0.6	0.9	18.4	<0.001
	Median ISS	N/A	N/A	1	4	9	17	26	75	<0.001

^aMaximum Abbreviated Injury Scale (AIS) score
^bTesting differences in LOS (Kruskal-Wallis test), increasing trend in median LOS (likelihood ratio test), and Admit % across various MAIS (1-6 only) (Cochran-Armitage trend test)
^cCorresponding mean Length of stay (LOS) for each MAIS in minutes (excluding visits resulting in death in ED n = 393)
^dCorresponding median Length of stay (LOS) for each MAIS in minutes (excluding visits resulting in death in ED n = 393)

ISSN: 2197-1714