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Peripheral Artery Disease Prevalence and Incidence Estimated From Both Outpatient and Inpatient Settings Among Medicare Fee-for-Service Beneficiaries in the Atherosclerosis Risk in Communities (ARIC) Study.

TitlePeripheral Artery Disease Prevalence and Incidence Estimated From Both Outpatient and Inpatient Settings Among Medicare Fee-for-Service Beneficiaries in the Atherosclerosis Risk in Communities (ARIC) Study.
Publication TypeJournal Article
Year of Publication2017
AuthorsKalbaugh CA, Kucharska-Newton AMaria, Wruck L, Lund JL, Selvin E, Matsushita K, Bengtson LGS, Heiss G
Secondary AuthorsLoehr LR
JournalJ Am Heart Assoc
Volume6
Issue5
Date Published2017 May 03
ISSN2047-9980
KeywordsAdministrative Claims, Healthcare, African Americans, Age Distribution, Aged, Ambulatory Care, Comorbidity, European Continental Ancestry Group, Fee-for-Service Plans, Female, Hospital Costs, Humans, Incidence, Male, Medicare, Patient Admission, Peripheral Arterial Disease, Prevalence, Risk Factors, Sex Distribution, Time Factors, United States
Abstract

BACKGROUND: Outpatient ascertainment of peripheral artery disease (PAD) is rarely considered in the measurement of PAD clinical burden; therefore, the clinical burden of PAD likely has been underestimated while contributing to a decreased awareness of PAD in comparison to other circulatory system disorders.

METHODS AND RESULTS: The purpose of this study was to estimate the age-standardized annual period prevalence and incidence of PAD in the outpatient and inpatient settings using data from the Atherosclerosis Risk in Communities (ARIC) study linked with Centers for Medicare and Medicaid Services claims. The majority (>70%) of all PAD encounters occurred in the outpatient setting. The weighted mean age-standardized prevalence and incidence of outpatient PAD was 11.8% (95% CI 11.5-12.1) and 22.4 per 1000 person-years (95% CI 20.8-24.0), respectively. Black patients had higher weighted mean age-standardized prevalence (15.6%; 95% CI 14.6-16.4) compared with white patients (11.4%; 95% CI 11.1-11.7). Black women had the highest weighted mean age-standardized prevalence (16.9%; 95% CI 16.0-17.8). Black patients also had a higher incidence rate of PAD (31.3 per 1000 person-years; 95% CI 27.3-35.4) compared with white patients (25.4 per 1000 person-years; 95% CI 23.5-27.3). PAD prevalence and incidence did not differ by sex alone.

CONCLUSIONS: This study provides comprehensive estimates of PAD in the inpatient and outpatient settings where the majority of PAD burden was found. PAD is an important circulatory system disorder similar in prevalence to stroke and coronary heart disease.

DOI10.1161/JAHA.116.003796
Alternate JournalJ Am Heart Assoc
PubMed ID28468784
PubMed Central IDPMC5524052
Grant ListK24 DK106414 / DK / NIDDK NIH HHS / United States
R01 DK089174 / DK / NIDDK NIH HHS / United States
T32 HL007055 / HL / NHLBI NIH HHS / United States