A method for estimating cost savings for population health management programs

Published: August 27, 2012
Category: Bibliography > Papers
Authors: Griswold ME, McGready J, Murphy SM, Sylvia ML
Countries: United States
Language: null
Types: Population Health
Settings: Health Plan, PCP

Health Serv Res 48:582-602.

Research and Development, Johns Hopkins HealthCare LLC, Glen Burnie, MD, USA

OBJECTIVE: To develop a quasi-experimental method for estimating Population Health Management (PHM) program savings that mitigates common sources of confounding, supports regular updates for continued program monitoring, and estimates model precision.

DATA SOURCES: Administrative, program, and claims records from January 2005 through June 2009.

DATA COLLECTION/EXTRACTION METHODS: Data are aggregated by member and month.

STUDY DESIGN: Study participants include chronically ill adult commercial health plan members. The intervention group consists of members currently enrolled in PHM, stratified by intensity level. Comparison groups include (1) members never enrolled, and (2) PHM participants not currently enrolled. Mixed model smoothing is employed to regress monthly medical costs on time (in months), a history of PHM enrollment, and monthly program enrollment by intensity level. Comparison group trends are used to estimate expected costs for intervention members. Savings are realized when PHM participants’ costs are lower than expected.

PRINCIPAL FINDINGS: This method mitigates many of the limitations faced using traditional pre-post models for estimating PHM savings in an observational setting, supports replication for ongoing monitoring, and performs basic statistical inference.

CONCLUSION: This method provides payers with a confident basis for making investment decisions.

PMID: 22924661

Payment,Practice Patterns Comparison,Cost Burden Evaluation,High-Impact Chronic Conditions,United States,Adult,Cost-Benefit Analysis,Gender,Middle Aged,Models,Econometric,Research Design

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