82 (95% confidence interval .71-.94). Similar increase in HV resulted in odds ratio of .86 (95% confidence interval .77-.96). Annual SV threshold of 21 RYGBs and HV of 25 cases were identified (area under the curve = .60 and .61, respectively). For SV, being in the higher volume category translated into an absolute risk reduction of 12.5% for…[Read more]