| |
Period 1
|
Period 2
|
p
|
|---|
| |
n = 325
|
n = 630
| |
|---|
|
Age, mean
|
34.6
|
33.4
|
0.36
|
|
Male (%)
|
243 (75)
|
453 (72)
|
0.36
|
|
Blunt (%)
|
281 (86)
|
542 (86)
|
0.92
|
|
GCS score, median (quartiles)
|
15.0 (7.5-15.0)
|
15.0 (11.8-15.0)
|
<0.01
|
|
ISS, median (quartiles)
|
29.0 (17.0-42.0)
|
26.0 (16.0-38.0)
|
0.05
|
|
LOS, median (quartiles)
|
6.0 (3.0-11.0)
|
8.0 (4.0-14.0)
|
<0.01
|
|
Deaths (%)
|
63 (20)
|
65 (10)
|
<0.01
|
|
W NTDB 05 (95% CI)
|
4.14 (1.93 to 6.36)
|
6.77 (4.83 to 8.71)
| |
- 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.
