Table 1.
Comparison of Period 1 and 2 for patients with abdominal injury
| |
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.