It has been well documented that dual-eligible (Medicare & Medicaid) beneficiaries have higher prevalence of MCC than non-dual eligible beneficiaries (CMS 2012 & Lochner et al. 2013). The 2012 CMS Chartbook reports that 72% of dual eligible beneficiaries have MCC compared to 67% of non-dual patients. Dual eligible beneficiaries were also found to be 1.7 times more likely to have 6 or more chronic conditions compared to non-dual eligible beneficiaries (CMS 2012). This is not surprising because the dual-eligible program serves people with multiple disabilities.
Potential disparities in the MCC population in other types of insurance programs are not as well studied. Of the four studies that investigated potential disparities in the MCC population by insurance type, each study used a different insurance classification variable (i.e. private vs. public, Medicare vs. Medicaid) or unit of observation (i.e. patients, discharges, visits), making the results difficult to compare (Ashman et al. 2013, Machlin et al. 2013, Ward et al. 2013 and Steiner et al. 2013).