Table 3.

Multivariate logistic regression model of initial expectant management before nephrectomy, the need for multiple interventions and requirement for nephrectomy for all renal trauma injury grades

	Initial Conservative Management OR (95% CI)	Need for Multiple Procedures OR (95% CI)	Nephrectomy Performed OR (95% CI)
Level I (vs all other levels)	1.90 (1.19, 3.05)	0.70 (0.52, 0.95)	1.00 (0.79, 1.26)
Region (vs Midwest):
Northeast	0.13 (0.01, 1.27)	0.54 (0.23, 1.27)	0.70 (0.37, 1.34)
South	0.69 (0.41, 1.16)	0.89 (0.64, 1.23)	1.46 (1.11, 1.91)
West	1.36 (0.65, 2.85)	0.65 (0.39, 1.08)	0.54 (0.36, 0.81)
Trauma mechanism (vs blunt):
Penetrating	0.49 (0.29, 0.82)	0.51 (0.37, 0.71)	4.58 (0.14, 42.0)
Kidney AAST grade (vs grade I):
II	0.91 (0.19, 4.39)	1.08 (0.56, 2.07)	2.76 (1.25, 6.07)
III	0.85 (0.22, 3.25)	1.13 (0.58, 2.18)	9.09 (4.30, 19.2)
IV	1.04 (0.30, 3.71)	2.18 (1.18, 4.02)	57.4 (27.9, 118)
V	0.62 (0.17, 2.34)	1.51 (0.74, 3.03)	223 (104, 478)

Adjusted for age, gender, race and ISS.