ASSESSING HEALTH CARE RESOURCE UTILIZATION AND COSTS AMONG US VETERANS DIAGNOSED WITH ASTHMA

Author(s)

Ogbomo A1, Tan H1, Kariburyo MF1, Xie L1, Baser O2
1STATinMED Research, Ann Arbor, MI, USA, 2Columbia University and STATinMED Research, New York, NY, USA

OBJECTIVES: To evaluate the health care resource utilization and economic burden of asthma in the US Veterans Health Administration (VHA) population.  METHODS: A retrospective data analysis was performed using VHA claims from October 1, 2009 through September 30, 2014. Asthmatic patients were identified using the International Classification of Diseases, 9th Revision, Clinical Modification diagnosis code 493. The diagnosis date was designated as the index date. A comparison cohort of patients without an asthma diagnosis was created for patients of the same age, gender, race, index year, and baseline Charlson Comorbidity Index score. A random index date was chosen for the comparison cohort to reduce selection bias. Patients were required to have continuous medical and pharmacy benefits 1 year pre- and post-index date. One-to-one propensity score matching (PSM) was performed to compare follow-up health care costs and utilization between the cohorts, adjusting for demographic and clinical characteristics. RESULTS: Eligible patients (N=253,302) were identified for patients with and without asthma. After 1:1 PSM, 75,214 patients were matched from each cohort, and the baseline characteristics were well-balanced. Asthmatic patients were more likely to utilize health care resources than non-asthmatic patients, including inpatient (8.50% vs. 3.48%, p<0.0001); outpatient (99.73% vs. 74.76%, p<0.0001), and pharmacy visits (90.91% vs. 65.94%, p<0.0001). Higher health care resource utilization translated to higher costs for asthmatic patients than non-asthmatic patients, including inpatient ($2,314 vs. $999, p<0.0001), outpatient ($4,435 vs. $2,803, p<0.0001), pharmacy ($747 vs. $511, p<0.0001) and total costs ($7,496 vs. $4,313, p<0.0001). CONCLUSIONS: The economic burden and health care resource utilization was significantly higher for patients in the US VHA population who were diagnosed with asthma compared to those without asthma.

Conference/Value in Health Info

2016-05, ISPOR 2016, Washington DC, USA

Value in Health, Vol. 19, No. 3 (May 2016)

Code

PRS29

Topic

Economic Evaluation

Topic Subcategory

Cost/Cost of Illness/Resource Use Studies, Cost-comparison, Effectiveness, Utility, Benefit Analysis

Disease

Respiratory-Related Disorders

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