Factors Associated with Chest Tube Placement in Blunt Trauma Patients with an Occult Pneumothorax

Table 2

Multivariable logistic regression analysis of factors associated with chest tube placement.

Variable	Odds ratio	95% CI	value
Displaced rib fracture	4.166	1.455–11.930	0.0078
Intubation	15.581	4.676–51.914	<0.0001
ISS	1.032	0.980–1.088	0.2341
Moderate-sized OPTX (reference small OPTX)	37.562	6.754–208.915	<0.0001

Notes. CI = confidence interval; ; ISS = Injury Severity Score; OPTX = occult pneumothorax.