TABLE 1.
Demographic, Injury and Prehospital Care Characteristics Among Patients with SBP 71–100
| Need for Resuscitative Care? | Difference (95% CI) |
||
|---|---|---|---|
| Yes (n=70) | No (n=317) | ||
| Age, Mean (SD), y | 35.9 (16.5) | 39.6 (17.9) | −3.6 (−8.0, 0.8) |
| Male, No. (%) | 53 (75.7) | 214 (67.5) | 8.2 (−4.0, 20.4) |
| Non-White or Hispanic1, No. (%) | 46 (73.0) | 168 (56.9) | 16.1 (2.8, 29.4) |
| Penetrating trauma, No. (%) | 42 (60.0) | 69 (21.8) | 38.2 (25.0, 51.4) |
| ISS2, Mean (SD) | 22.3 (14.8) | 9.8 (10.1) | 12.6 (8.8, 16.4) |
| > 15, No. (%) | 43 (64.2) | 76 (24.0) | 40.2 (26.9, 53.5) |
| Head AIS > 2, No. (%) | 7 (10.0) | 43 (13.6) | −3.6 (−12.4, 5.3) |
| Qualifying SBP, Mean (SD), mmHg | 87.5 (7.2) | 89.9 (7.9) | −2.4 (−4.3, −0.5) |
| ≤ 90, No. (%) | 47 (67.1) | 166 (52.4) | 14.8 (1.6, 27.9) |
| Shock index | 1.20 (0.33) | 1.01 (0.25) | 0.19 (0.11, 0.27) |
| Initial GCS, Mean (SD) | 12.7 (4.0) | 13.4 (3.0) | −0.7 (−1.7, 0.3) |
| Initial respiratory rate2, Mean (SD), breaths/m | 19.0 (6.8) | 19.6 (4.9) | −0.5 (−2.2, 1.2) |
| Initial heart rate2, Mean (SD), beats/m | 104.4 (24.7) | 91.1 (21.0) | 13.3 (7.0, 19.6) |
| Revised Trauma Score2, Mean (SD) | 6.79 (1.39) | 7.16 (0.90) | −0.38 (−0.72, −0.03) |
| Lactate, Mean (SD), mmol/L | 6.2 (3.7) | 3.7 (3.4) | 2.5 (1.6, 3.5) |
| ≥ 2.5, No. (%) | 65 (92.9) | 163 (51.4) | 41.4 (32.4, 50.5) |
| ≥ 2.5 and SBP 91–100, No. (%) | 21 (30.0) | 72 (22.7) | 7.3 (−5.3, 19.8) |
Abbreviations: AIS, Abbreviated Injury Scale; CI, confidence interval; GCS, Glasgow Coma Scale; ISS, Injury Severity Score; SBP, systolic blood pressure.
1
Race or ethnicity is not reported for 29 patients.
2
ISS is missing for 3 patients; Respiratory rate and Revised Trauma Score are missing for 2 patients; and heart rate is missing for 1 patient.