Journal of atherosclerosis and thrombosis · 2015
High-Risk Atherosclerotic Cardiovascular Disease in a Real-World Employed Japanese Population: Prevalence, Cardiovascular Event Rates, and Costs.
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Davis Keith L, Meyers Juliana, Zhao Zhenxiang, McCollam Patrick L, Murakami Masahiro
Аннотация
AIM: To assess the prevalence of high-risk atherosclerotic cardiovascular disease (ASCVD, defined as history of acute coronary syndrome [hACS], cerebrovascular atherosclerotic disease [CeVAD], peripheral artery disease [PAD], or coronary artery disease w/diabetes [CADD]) and associated costs and cardiovascular (CV) events in Japan.
METHODS: A retrospective analysis was conducted using the Japan Medical Data Center (JMDC) database (2006-2011). ASCVD prevalence was estimated on the basis of diagnoses for CeVAD, PAD, CADD, and hACS (ACS claim ＞ 30-≤ 365 days after ACS-related hospitalization) during 1/1/ 2008-12/31/2009. Population denominators used in the prevalence estimations were provided by JMDC. A subcohort with an insurance coverage for ≥ 12 months before and ≥ 24 months after first/index ASCVD claim during 1/1/2008-12/31/2009 were analyzed on the basis of costs (in 2012 US dollars) and events.
RESULTS: ASCVD prevalence was 1,869/100,000 population. In total, 8,112 patients met inclusion criteria for the cost and CV event analyses. Among these patients, 4.0% experienced any event (myocardial infarction, stroke, coronary revascularization, hospitalization for unstable angina) in the year after ASCVD diagnosis, which decreased to 2.2% in year 2. First-year event rates were highest (22%) in patients with hACS. Mean [SD] all-cause costs per patient in year 1 were $7,031 [$14,359] for all patients with ASCVD combined. Extrapolated to the entire employed population, total first-year costs were estimated at $8.2 billion.
CONCLUSIONS: ASCVD is not rare in Japan, even within a relatively young population of employed persons. Further, the total direct first-year cost burden of ASCVD in the employed Japanese population is high. These data may inform future economic assessments of new ASCVD treatments.
METHODS: A retrospective analysis was conducted using the Japan Medical Data Center (JMDC) database (2006-2011). ASCVD prevalence was estimated on the basis of diagnoses for CeVAD, PAD, CADD, and hACS (ACS claim ＞ 30-≤ 365 days after ACS-related hospitalization) during 1/1/ 2008-12/31/2009. Population denominators used in the prevalence estimations were provided by JMDC. A subcohort with an insurance coverage for ≥ 12 months before and ≥ 24 months after first/index ASCVD claim during 1/1/2008-12/31/2009 were analyzed on the basis of costs (in 2012 US dollars) and events.
RESULTS: ASCVD prevalence was 1,869/100,000 population. In total, 8,112 patients met inclusion criteria for the cost and CV event analyses. Among these patients, 4.0% experienced any event (myocardial infarction, stroke, coronary revascularization, hospitalization for unstable angina) in the year after ASCVD diagnosis, which decreased to 2.2% in year 2. First-year event rates were highest (22%) in patients with hACS. Mean [SD] all-cause costs per patient in year 1 were $7,031 [$14,359] for all patients with ASCVD combined. Extrapolated to the entire employed population, total first-year costs were estimated at $8.2 billion.
CONCLUSIONS: ASCVD is not rare in Japan, even within a relatively young population of employed persons. Further, the total direct first-year cost burden of ASCVD in the employed Japanese population is high. These data may inform future economic assessments of new ASCVD treatments.