Doubly robust machine learning-based estimation methods for instrumental variables with an application to surgical care for cholecystitis
Kenta Takatsu,
Alexander W Levis,
Edward Kennedy
et al.
Abstract:Comparative effectiveness research frequently employs the instrumental variable design since randomized trials can be infeasible. In this study, we investigate treatments for emergency cholecystitis—inflammation of the gallbladder. A standard treatment for cholecystitis is surgical removal of the gallbladder, while alternative non-surgical treatments include managed care and pharmaceutical options. We use an instrument for operative care: the surgeon’s tendency to operate. Standard instrumental variable estima… Show more
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