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papers

High-deductible insurance: two-year emergency department and hospital use

Published: October 1, 2011
Category: Papers
Authors: Landon BE, Ross-Degnan D, Soumerai SB, Wharam JF, Zhang F
Country: United States
Language: null
Type: Care Management
Settings: Academic, Health Plan

Am J Manag Care 17:e410-8.

Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, MA, USA

OBJECTIVES: To determine the 2-year impact of high-deductible health plans (HDHPs) on high-acuity, expensive medical care.

STUDY DESIGN: Retrospective pre-post, with propensity score-matched comparison group.

METHODS: We studied emergency department visits, hospitalizations, and related expenditures among 15,847 HMO members for 1 year before and up to 2 years after an employer-mandated switch to HDHPs, compared with 15,847 propensity-matched controls who remained in HMOs. Members were aged 1 to 64 years and insured between 2001 and 2008.

RESULTS: Emergency department visits among HDHP members declined by 15.0% and 15.7% from baseline to the first and second follow-up years, respectively (95% confidence intervals -21.1% to -8.4% and -24.1% to -6.4%, respectively). Rates of nonemergent visits declined significantly in both years (-19.6% [-28.2% to-9.9%] and -18.1% [-29.8% to -4.4%], respectively), while intermediate-severity visits declined to a lesser degree (-13.4% [-23.0% to -2.5%] in the first and -10.9% [-24.4% to 5.1%] in the second follow-up year). Reductions in emergent visits were not detectable in either the first or second follow-up year (-9.7% [-26.9% to 11.5%] and -15.3% [-36.8% to 13.3%], respectively). Hospitalization rates decreased in the first follow-up year (-22.8% [-33.8% to -10.0%]), but hospitalization and cost reductions were not detectable by the second follow-up year (-11.8% [-27.9% to 7.9%] and 1.9% [-22.2% to 33.4%], respectively).

CONCLUSIONS: HDHP members experienced sustained reductions in emergency department visits over 2 years, but reductions in hospital utilization and costs were not apparent by the second year. Longer-term studies that assess deferred utilization and its effects are needed.

PMID: 21999721

Resource Utilization,Cost Burden Evaluation,Payment,United States,Adolescent,Adult,Child,Preschool,Emergency Service,Hospital/statistics & numerical data,Emergency Service,Hospital/utilization,Health Maintenance Organizations/economics,Hospitalization/statistics & numerical data,Middle Aged,Retrospective Studies,Young Adult

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