Table 1.
Descriptive trends of characteristics in SATBI patients
| Characteristics | Total | 1998 | 2007 | Average change per year |
|---|---|---|---|---|
| (N=26,234) | (n=1,757) | (n=3,808) | ||
| Age (years) | ||||
| Mean (SD) | 55.9 (23.6) | 51.1 (23.2) | 59.3 (23.1) | +0.9 years |
| Median [PR] | 57 [35–78] | 47 [30–74] | 63 [41–80] | +1.8 years |
| Sex | ||||
| Female | 34.8 | 31.2 | 36.7 | +2.2 |
| Race | ||||
| White | 80.2 | 78.6 | 80.6 | +0.5 |
| Black | 11.6 | 14.9 | 9.8 | −4.5 |
| Other | 8.2 | 6.5 | 9.5 | +5.4 |
| Pre-existing conditions or co-morbidities | 74.5 | 60.0 | 79.6 | +10.8 |
| Mechanism of injury | ||||
| Falls | 47.7 | 33.5 | 55.7 | +8.9 |
| Motor vehicle | 33.5 | 42.9 | 28.0 | −6.5 |
| Firearms | 6.2 | 9.4 | 4.6 | −7.1 |
| Other | 12.6 | 14.2 | 11.7 | +1.5 |
| Severe extra-cranial injuries* | 5.4 | 8.3 | 5.0 | −3.9 |
| NISS | ||||
| Mean (SD) | 33.9 (11.7) | 36.2 (11.7) | 33.1 (11.6) | −0.22 points |
| Median [PR] | 34 [25–41] | 34 [29–48] | 34 [24–41] | 0 points |
| Length of hospital stay (days) | ||||
| Mean (SD) | 9.9 (13.4) | 10.7 (13.6) | 9.1 (12.7) | −0.22 days |
| Median [PR] | 5 [2–12] | 6 [2–14] | 5 [2–11] | −0.11 days |
| Type of trauma center | ||||
| Level I | 64.2 | 63.7 | 63.8 | +1.8 |
| Level II | 35.8 | 36.3 | 36.2 | −1.8 |
| Discharge status | ||||
| Alive | 77.5 | 72.2 | 82.1 | +6.5 |
Data are percentages unless otherwise indicated. SD, standard deviation; PR, percentile range; NISS, new injury severity score.
*
Severe extra-cranial injuries are any injury with AIS score of 4 through 6 in the following body regions: face, chest, abdomen, extremities, and/or external.