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The American Journal of Managed Care July 2018
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Postdischarge Engagement Decreased Hospital Readmissions in Medicaid Populations
Wanzhen Gao, PhD; David Keleti, PhD; Thomas P. Donia, RPh; Jim Jones, MBA; Karen E. Michael, MSN, MBA, RN; and Andrea D. Gelzer, MD, MS, FACP
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Postdischarge Engagement Decreased Hospital Readmissions in Medicaid Populations

Wanzhen Gao, PhD; David Keleti, PhD; Thomas P. Donia, RPh; Jim Jones, MBA; Karen E. Michael, MSN, MBA, RN; and Andrea D. Gelzer, MD, MS, FACP
Postdischarge engagement of at-risk Medicaid beneficiaries in 6 health plans resulted in significant reductions in hospital readmissions at rates proportional to the frequency of engagement.
ABSTRACT

Objectives: To investigate the effect of managed care organization (MCO)-implemented postdischarge engagement, supported by other broadly focused interventions, on 30-day hospital readmissions in 6 at-risk Medicaid populations.

Study Design: Prospective cohort study.

Methods: One-year follow-up analysis of member claims data was performed following an intervention period from January 1, 2014, to December 31, 2014. Postdischarge engagement, supported by additional MCO-initiated interventions, was implemented to reduce 30-day hospital readmissions in Medicaid members having 1 or more dominant chronic conditions. Hospital readmission rates were calculated at baseline and at 1 year post intervention. Bivariable and multivariable generalized estimating equation analysis was used to quantify the likelihood of hospital readmissions.

Results: Following implementation, postdischarge engagement rates increased significantly, whereas provider follow-up rates remained unchanged. Increased member engagement resulted in statistically significant reductions in weighted readmission rates enterprise-wide (–10.1%; P <.01) and in 3 of 6 MCOs (–3.9% to –15.8%; P ≤.05) in 2014. Compared with nonparticipants, members who were successfully reached for postdischarge engagement displayed a 33% decrease in 30-day readmissions enterprise-wide (adjusted odds ratio, 0.67; 95% CI, 0.62-0.73) and a comparable decrease (–23% to –39%) in 5 of the 6 MCOs. In this context, greater frequency of postdischarge engagement was associated with proportionally decreased likelihood of readmissions.

Conclusions: Postdischarge engagement, against the backdrop of multifaceted MCO-implemented interventions, was associated with significantly reduced hospital readmissions in at-risk Medicaid subjects. Reduced likelihood of readmissions was observed at both the enterprise-wide and plan levels in a manner proportional to the frequency of engagement, a novel reported outcome for this population.

Am J Manag Care. 2018;24(7):e200-e206

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