| |
Period 1
|
Period 2
|
p
|
|---|
| |
n = 163
|
n = 296
| |
|---|
|
Age, mean
|
37.4
|
36.6
|
0.63
|
|
Male (%)
|
127 (78)
|
220 (74)
|
0.42
|
|
Blunt (%)
|
99 (61)
|
183 (62)
|
0.84
|
|
GCS score, median (quartiles)
|
15.0 (5.0-15.0)
|
15.0 (9.0-15.0)
|
0.09
|
|
ISS, median (quartiles)
|
29.0 (10.0-45.0)
|
25.0 (10.0-38.0)
|
0.02
|
|
LOS, median (quartiles)
|
5.0 (2.0-11.0)
|
8.0 (3.0-16.0)
|
<0.01
|
|
Deaths (%)
|
60 (37)
|
59 (20)
|
<0.01
|
|
W NTDB 05 (95% CI)
|
0.25 (-3.81 to 4.30)
|
3.91 (0.99 to 6.84)
| |
- GCS: Glascow Coma Scale; ISS: injury severity score; LOS: length of stay; W NTDB 05: W-statistics with coefficients from National Trauma Data Bank 2005; CI: confidence interval.
- One patient from period 2 has missing data on age, mechanism of injury, GCS and ISS.
