Table 3. Multivariate analysis of factors contributing to RPE.

Factor	OR	95% CI for OR	P value
Pleural effusion	1.557	1.290-1.880	<0.001
Size of pneumothorax	1.004	1.000-1.008	0.004
Duration of symptoms	0.996	0.980-1.011	0.61

OR, odds ratio; 95% CI, 95% confidence intervals; RPE, reexpansion pulmonary edema.