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Am J Health Promot. 2014 Mar-Apr;28(4):218-27. doi: 10.4278/ajhp.121116-QUAN-561. Epub 2013 Dec 20.

Identifying patients at risk for high medical costs and good candidates for obesity intervention.

Abstract

PURPOSE:

To develop a risk-scoring tool to identify in a base year patients likely to have high medical spending in the subsequent year and to understand the role obesity and obesity reduction may play in mitigating this risk.

DESIGN:

Cross-sectional analysis, using commercial claims and health risk assessment data.

SETTING:

United States, 2004-2009.

SUBJECTS:

Panel of 192,750 person-year observations from 116,868 unique working-age employees of large companies.

MEASURES:

Probability of high medical expenses (80th percentile or above) in the following year; adjusted body mass index (BMI).

ANALYSIS:

Generate risk scores by modeling the likelihood of high next-year expenses as a function of base-year age, sex, medical utilization, comorbidities, and BMI. Estimate the effect of simulated bariatric intervention on patient risk scores.

RESULTS:

Individuals with higher BMI were more likely to be categorized in the very high risk group, in which the average annual medical expense was $8621. A weight-loss intervention transitioning a patient to the next lower obesity class was predicted to reduce this risk by 1.5% to 27.4%-comparable to hypothetically curing a patient of depression or type 2 diabetes.

CONCLUSION:

A logistic model was used to capture the effect of BMI on the risk of high future medical spending. Weight-loss interventions for obese patients may generate significant savings by reducing this risk.

PMID:
24359175
DOI:
10.4278/ajhp.121116-QUAN-561
[Indexed for MEDLINE]

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