Measuring the burden of multimorbidity among Medicare beneficiaries via condition counts and cumulative duration

Health Services Research
M Maciejewski, Bradley G Hammill

Abstract

The study's purpose was to describe the cumulative duration of 19 chronic conditions among Medicare fee-for-service (FFS) beneficiaries and examine variation in total expenditures explained by cumulative duration and condition counts. In a retrospective cohort of FFS beneficiaries age ≥68, 2015 Medicare enrollment and claims data (N = 20 124 230) were used to identify the presence or absence of 19 diagnosed chronic conditions, and to construct MCC categories (0-1, 2-3, 4-5, 6+) and cumulative duration of each of 19 conditions from the date of first possible occurrence in claims (1/1/1999) to the end of follow-up (date of death or 12/31/2015). Total Medicare expenditures were estimated using linear models adjusted for demographic characteristics. Multimorbidity was common (71.7 percent with 2+ conditions). The mean cumulative duration of all 19 conditions was 23.6 person-years, which varied greatly by age and number of conditions. Condition counts were more predictive of Medicare expenditures than cumulative duration (R-squared for continuous measures = 0.461 vs 0.272; R-squared for quartiles = 0.408 vs 0.266). The cumulative duration of chronic conditions varied widely for Medicare beneficiaries, especially for those with 6+ co...Continue Reading

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Citations

Aug 14, 2019·The Journals of Gerontology. Series A, Biological Sciences and Medical Sciences·Shan-Shan YaoBeibei Xu
Oct 2, 2019·International Journal of Environmental Research and Public Health·Giovanni Mario PesMaria Pina Dore
Oct 22, 2020·The American Journal of Hospice & Palliative Care·Cara L McDermottJ Randall Curtis
Feb 2, 2021·Journal of the National Cancer Institute·Nathanael R FillmoreJane A Driver
May 9, 2021·The Journals of Gerontology. Series B, Psychological Sciences and Social Sciences·Boon Peng Ng, Chanhyun Park
Oct 9, 2021·Pharmacoepidemiology and Drug Safety·Marc SimardCaroline Sirois

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