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Quality of Care in Accredited and Nonaccredited Ambulatory Surgical Centers

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Background: Little is known about quality outcomes in accredited and nonaccredited ambulatory surgical centers (ASCs). Quality outcomes in ASCs accredited by either the Accreditation Association for Ambulatory Health Care (AAAHC) or The Joint Commission were compared with those of nonaccredited ASCs in Florida.

Methods: Patient-level ambulatory surgery and hospital discharge data from Florida for 2004 were merged and analyzed. Multivariate logistic regressions were estimated separately for the five most common ambulatory surgical procedures: colonoscopy, cataract removal, upper gastroendoscopy, arthroscopy, and prostate biopsy. Statistical models examined differences in risk-adjusted 7-day and 30-day unexpected hospitalizations between nationally accredited and nonaccredited ASCs. In addition to risk adjustment, each model controlled for facility volume of procedure and patient demographic characteristics including gender, race, age, and insurance type.

Results: In multivariate analyses that controlled for facility volume and patient characteristics, patients at Joint Commission–accredited facilities were still significantly less likely to be hospitalized after colonoscopy. Specifically, compared with patients treated in nonaccredited ASCs regulated by the state agency, patients treated at those facilities were 10.9% less likely to be hospitalized within 7 days (adjusted odds ratio [OR] = 0.891; 95% confidence interval [C.I.], 0.799–0.993) and 9.4% less likely to be hospitalized within 30 days (adjusted OR = 0.906; 95% C.I., 0.850–0.966). No other differences in unexpected hospitalization rates were detected in the other procedures examined.

Discussion: With the exception of one procedure, systematic differences in quality of care do not exist between ASCs that are accredited by AAAHC, those accredited by the Joint Commission, or those not accredited in Florida.

Document Type: Research Article

Publication date: September 1, 2008

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  • Published monthly, The Joint Commission Journal on Quality and Patient Safety is a peer-reviewed publication dedicated to providing health professionals with the information they need to promote the quality and safety of health care. The Joint Commission Journal on Quality and Patient Safety invites original manuscripts on the development, adaptation, and/or implementation of innovative thinking, strategies, and practices in improving quality and safety in health care. Case studies, program or project reports, reports of new methodologies or new applications of methodologies, research studies on the effectiveness of improvement interventions, and commentaries on issues and practices are all considered.

    Also known as Joint Commission Journal on Quality Improvement and Joint Commission Journal on Quality and Safety
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