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10 ASC TURNAROUNDS How Office-based Surgery Centers Stack up Against ASCs, HOPDs By Eric Oliver A study, published in Health Services Insights, examined the dif- ference in 7-day and 30-day hospitalization rates concerning outpatient surgical procedures at office-based surgery suites, ASCs and hospital outpatient departments. Robert Ohsfeldt, PhD, of College Station-based Texas A&M University, and colleagues conducted a multivariable logistic re- gression to compare risk-adjusted probability of hospitalization. Researchers examined 88 procedures performed between 2008 and 2012 in Florida. Researchers found that risk-adjusted hospitalization rates were higher for procedures performed at physicians' offices when compared to ASCs. Across all 88 procedures, 7-day hospitalization rates were two times higher for procedures performed in an office-based center than in an ASC. irty-day hospitalization rates for procedures performed in an office suite were 34 percent higher than when performed in an ASC. Risk-adjusted 7-day hospitalization rates for office-based pro- cedures was greater for 30 of 71 individual CPT codes models. When considering 30-days rates, hospitalization risk was greater for 27 of 71 individual CPT code models. e largest specific significant difference in outcomes between an office-based center and an ASC concerned tissue remove for gra. In an office setting, the 7-day post-surgery hospitalization rate was 12 times greater, than if the procedure was performed in an ASC. Considering 30-day rates, the risk was 11 times higher in an office-based setting than when performed in an ASC. Researchers said, "e rate of admission to an inpatient hospital within seven days of outpatient surgery was 9.08 per 1,000 outpa- tient procedures at physicians' offices, 8.41 per 1,000 outpatient procedures at ASCs and 21 per 1,000 outpatient procedures at HOPDs." n Across all 88 procedures, 7-day hospital- ization rates were two times higher for procedures performed in an office-based center than in an ASC.