|
Total injury visits
|
ED stay characteristic
|
Visits without MAIS mapping determine
|
MAISa 1
|
MAIS 2
|
MAIS 3
|
MAIS 4
|
MAIS 5
|
MAIS 6
|
Statisticb
|
|---|
|
E-code without injury ICD-9
|
ICD-9 with insufficient detail to be mapped
|
|---|
|
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)
