Katherine Piwnica-Worms1,2, Becky Staiger3, Joseph S Ross4,5,6,7, Marjorie S Rosenthal4,8, Chima D Ndumele7. 1. Department of Pediatrics, NYU Langone School of Medicine, New York, New York, USA. 2. Office of Ambulatory Care, NYC Health+Hospital, New York, New York, USA. 3. Center for Health Policy/Primary Care and Outcomes Research, Stanford University, Stanford, California, USA. 4. National Clinician Scholars Program, Yale University School of Medicine, New Haven, Connecticut, USA. 5. Section of General Medicine, Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut, USA. 6. Center for Outcomes Research and Evaluation, Yale New Haven Health System, New Haven, Connecticut, USA. 7. Department of Health Policy and Management, Yale University School of Public Health, New Haven, Connecticut, USA. 8. Department of Pediatrics, Yale University School of Medicine, New Haven, Connecticut, USA.
Abstract
OBJECTIVE: To evaluate the effect of a forced disruption to Medicaid managed care plans and provider networks on health utilization and outcomes for children with persistent asthma. DATA SOURCES: Medicaid managed care administrative claims data from 2013 to 2016, obtained from a southeastern state. STUDY DESIGN: A difference-in-difference analysis compared patients' outpatient, inpatient, and emergency department (ED) utilization and receipt of recommended services before and after implementation of a statewide redistribution of patients among nine managed care plans. DATA COLLECTION/EXTRACTION METHODS: Enrollment data for children with asthma were linked to the administrative claims. Children were included if they had a diagnosis of persistent asthma in 2013 and if they were enrolled continuously throughout 2014-2016. PRINCIPAL FINDINGS: Among the 28 537 children with asthma, 26% were forced to switch their managed care plan after the redistribution. Of these, 67% also switched their primary care provider (PCP). Relative to those who remained in their plan, disruption was associated with an additional 2.1 percentage-point decrease in the number of children who had an outpatient visit per quarter [95%CI -2.8, -1.3], from 71% to 66% (compared to plan stayers: 74% to 71%). Among children experiencing a change to their plan, there was overall a decrease in the proportion of children receiving an asthma-specific visit per quarter, but there was less of a decrease in children that also changed their PCP [1.6 percentage points, 95%CI 0.7, 2.5], from 9.7% to 8.3% (compared to those who did not switch their PCP: 12% to 8.6%). Indicators of asthma care quality and emergent care utilization were not significantly different between the two periods. CONCLUSIONS: While there was a decrease in the number of outpatient visits associated with forced disruption of Medicaid managed care plans for children with persistent asthma, there were no consistent associations with worse asthma quality performance or higher emergent health care utilization.
OBJECTIVE: To evaluate the effect of a forced disruption to Medicaid managed care plans and provider networks on health utilization and outcomes for children with persistent asthma. DATA SOURCES: Medicaid managed care administrative claims data from 2013 to 2016, obtained from a southeastern state. STUDY DESIGN: A difference-in-difference analysis compared patients' outpatient, inpatient, and emergency department (ED) utilization and receipt of recommended services before and after implementation of a statewide redistribution of patients among nine managed care plans. DATA COLLECTION/EXTRACTION METHODS: Enrollment data for children with asthma were linked to the administrative claims. Children were included if they had a diagnosis of persistent asthma in 2013 and if they were enrolled continuously throughout 2014-2016. PRINCIPAL FINDINGS: Among the 28 537 children with asthma, 26% were forced to switch their managed care plan after the redistribution. Of these, 67% also switched their primary care provider (PCP). Relative to those who remained in their plan, disruption was associated with an additional 2.1 percentage-point decrease in the number of children who had an outpatient visit per quarter [95%CI -2.8, -1.3], from 71% to 66% (compared to plan stayers: 74% to 71%). Among children experiencing a change to their plan, there was overall a decrease in the proportion of children receiving an asthma-specific visit per quarter, but there was less of a decrease in children that also changed their PCP [1.6 percentage points, 95%CI 0.7, 2.5], from 9.7% to 8.3% (compared to those who did not switch their PCP: 12% to 8.6%). Indicators of asthma care quality and emergent care utilization were not significantly different between the two periods. CONCLUSIONS: While there was a decrease in the number of outpatient visits associated with forced disruption of Medicaid managed care plans for children with persistent asthma, there were no consistent associations with worse asthma quality performance or higher emergent health care utilization.
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