Demographic summary of the included patients (n=594)
| Frequency (n=594) | Percentage (%) | |
|---|---|---|
| Sex | ||
| Female | 214 | 36 |
| Male | 380 | 64 |
| Ethnicity | ||
| African American | 44 | 7.4 |
| Asian | 32 | 5.4 |
| Caucasian | 270 | 45.5 |
| Hispanic | 229 | 38.6 |
| Other | 19 | 3.2 |
| Glasgow Coma Scale | ||
| 14 | 59 | 9.9 |
| 15 | 535 | 90.1 |
| Self-reported abdominal pain | ||
| No | 434 | 73.1 |
| Yes | 160 | 26.9 |
| Abdominal tenderness on examination | ||
| No | 380 | 64 |
| Yes | 214 | 36 |
| CT scan findings | ||
| Negative | 462 | 77.8 |
| Positive | 132 | 22.2 |
| Exploratory laparotomy | ||
| No | 559 | 94.1 |
| Yes | 35 | 5.9 |
| Exploratory laparotomy findings | ||
| Negative | 6 | 17.1 |
| Positive | 29 | 82.9 |
| Frequency missing=563 | ||
| Abdominal pain or tenderness | ||
| Negative self-reported abdominal pain and negative abdominal tenderness on physical examination | 352 | 59.3 |
| Negative self-reported abdominal pain and positive abdominal tenderness on physical examination | 82 | 13.8 |
| Positive self-reported abdominal pain and negative abdominal tenderness on physical examination | 28 | 4.7 |
| Positive self-reported abdominal pain and positive abdominal tenderness on physical examination | 132 | 22.2 |
| Injury severity score, median (Q1, Q3) | 10 (7, 17) | |