Accuracy of Focused Assessment with Sonography for Trauma (FAST) in Blunt Abdominal Trauma

Table 4

Univariate and multivariate analyses of factors associated with true-positive results.

	Univariate analysis		Multivariate analysis
	OR [95% CI]		OR [95% CI]
Age	0.997 [0.985–1.010]	0.653	0.996 [0.983–1.009]	0.517
Sex	1.151 [0.681–1.945]	0.598	1.137 [0.660–1.960]	0.643
Initial SBP	0.990 [0.983–0.998]	0.008	0.998 [0.990–1.007]	0.664
Lowest SBP	0.985 [0.978–0.993]	<0.001	0.988 [0.980–0.997]	0.009
Initial heart rate	1.008 [1.000–1.016]	0.059	1.005 [0.996–1.014]	0.272
Vascular injury	2.286 [1.094–4.778]	0.028	1.665 [0.767–3.615]	0.197
Hollow viscus injury	1.848 [1.169–2.923]	0.009	1.820 [1.123–2.949]	0.015

OR: Odds ratio; CI: confidence interval; SBP: systolic blood pressure. Hosmer–Lemeshow goodness of fit (DF = 8), chi-square = 6.916, .