VA Expenditures of Bariatric Surgery Patients and Matched ...

The source for the surgical patients or the cases is the VA surgical quality improvement program, which has been around since 1994. ... We use GEE methods to analyze these outcomes with log link and variants proportional to mean. It is allowing for discontinuity of trend at the time of surgery. ... such as PCOS, asthma, PTSD, or substance abuse ................
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