TY - JOUR KW - Medicaid expansion KW - accountable care organization KW - Integrated care models KW - marginal structural models KW - Social Determinants of Health AU - K. D. Vickery AU - N. D. Shippee AU - J. Menk AU - R. Owen AU - D. M. Vock AU - P. Bodurtha AU - D. Soderlund AU - R. A. Hayward AU - M. M. Davis AU - J. Connett AU - M. Linzer A1 - AB - Hennepin Health, a Medicaid accountable care organization, began serving early expansion enrollees (very low-income childless adults) in 2012. It uses an integrated care model to address social and behavioral needs. We compared health care utilization in Hennepin Health with other Medicaid managed care in the same area from 2012 to 2014, controlling for demographics, chronic conditions, and enrollment patterns. Homelessness and substance use were higher in Hennepin Health. Overall adjusted results showed Hennepin Health had 52% more emergency department visits and 11% more primary care visits than comparators. Over time, modeling a 6-month exposure to Hennepin Health, emergency department and primary care visits decreased and dental visits increased; hospitalizations decreased nonsignificantly but increased among comparators. Subgroup analysis of high utilizers showed lower hospitalizations in Hennepin Health. Integrated, accountable care under Medicaid expansion showed some desirable trends and subgroup benefits, but overall did not reduce acute health care utilization versus other managed care. AD - Hennepin Healthcare, Minneapolis, MN, USA.; University of Minnesota, Minneapolis, MN, USA.; University of Minnesota, Minneapolis, MN, USA.; Health Strategy Director, Hennepin County, Minneapolis, MN, USA.; University of Minnesota, Minneapolis, MN, USA.; Hennepin County Center of Innovation and Excellence, Minneapolis, MN, USA.; Hennepin Healthcare, Minneapolis, MN, USA.; University of Michigan, Ann Arbor, MI, USA.; University of Michigan, Ann Arbor, MI, USA.; University of Minnesota, Minneapolis, MN, USA.; Hennepin Healthcare, Minneapolis, MN, USA. BT - Medical care research and review : MCRR C5 - Financing & Sustainability; Healthcare Policy CP - 1 CY - United States DO - 10.1177/1077558718769481 IS - 1 JF - Medical care research and review : MCRR M1 - Journal Article N2 - Hennepin Health, a Medicaid accountable care organization, began serving early expansion enrollees (very low-income childless adults) in 2012. It uses an integrated care model to address social and behavioral needs. We compared health care utilization in Hennepin Health with other Medicaid managed care in the same area from 2012 to 2014, controlling for demographics, chronic conditions, and enrollment patterns. Homelessness and substance use were higher in Hennepin Health. Overall adjusted results showed Hennepin Health had 52% more emergency department visits and 11% more primary care visits than comparators. Over time, modeling a 6-month exposure to Hennepin Health, emergency department and primary care visits decreased and dental visits increased; hospitalizations decreased nonsignificantly but increased among comparators. Subgroup analysis of high utilizers showed lower hospitalizations in Hennepin Health. Integrated, accountable care under Medicaid expansion showed some desirable trends and subgroup benefits, but overall did not reduce acute health care utilization versus other managed care. PP - United States PY - 2020 SN - 1552-6801; 1077-5587 SP - 46 EP - 59 EP - T1 - Integrated, Accountable Care For Medicaid Expansion Enrollees: A Comparative Evaluation of Hennepin Health T2 - Medical care research and review : MCRR TI - Integrated, Accountable Care For Medicaid Expansion Enrollees: A Comparative Evaluation of Hennepin Health U1 - Financing & Sustainability; Healthcare Policy U2 - 29749302 U3 - 10.1177/1077558718769481 VL - 77 VO - 1552-6801; 1077-5587 Y1 - 2020 Y2 - Feb ER -