Abstract P155: Cardiovascular Health at Young and Middle Ages and Medical Care Costs at Old Age

Abstract

Introduction: We investigate the association between cardiovascular health at young and middle age and medical care costs and utilization in old age. Methods: We linked Chicago Heart Association (CHA) study participants’ baseline cardiovascular health (CVH) (18-59 yrs) to their Medicare claims (1991-2010) for all Part A and Part B services, including inpatient and skilled nursing facility, outpatient, home health, durable medical equipment, and hospice care. Baseline CVH is a composite measure of BP, cholesterol, diabetes, BMI, and smoking and is divided into four strata representing increasing burden. Medical care utilization (e.g., admissions and visits) and costs (in 2010 dollars) were calculated from the claims. We analyzed both the overall costs and the composition of costs among various medical care services and by CVD (non-CVD) morbidity and sex. Conditional quantile regressions were used to estimate the association between increased CVH and costs and negative binomial regressions were used for the number of inpatient admissions and outpatient visits, and the length of inpatient or hospice stay. Results: Among the 22,236 participants (222,816 person-years) 41.7% are female, 5.7% had favorable levels of all factors, 19.6% had 1+ risk factors at elevated levels, 40.9% had 1 high risk factor, and 33.7% had 2+ high risk factors. The median (mean) health care costs over the sample is $12,477 ($189,598) per person year in 2010 dollars, poorer CVH was associated with higher total medical care costs and a greater proportion of spending on home health visits (Figure). A greater CVH burden was associated with greater utilization and length of stay. Individuals with 2+ high risk factors on average have 0.22 more inpatient admissions per year and their inpatient stay is almost 2.91 days longer per year than individuals with favorable CVH. Conclusion: Unfavorable CVH early in life is associated with higher medical care cost burden in old age. Future interventions to improve CVH may result in reduced healthcare costs and utilization.