involving thoracentesis procedures to determine whether the use of ultrasonographic (US) guidance is associated with differences in complications or hospital costs as compared with not using US guidance.Methods.We used the Premier hospital database to identify patients with ICD-9 coded thoracentesis in ...
Pneumothorax outcomes were identified via ICD-9 codes. Adjusted risk of pneumothorax was estimated using multivariate logistic regression, controlling for baseline variables that altered the odds ratio (OR) for ultrasound guidance by >10%. Total hospitalization cost and length of stay (LOS) were ...