Chronic Health Conditions Among Adults With Intellectual and Developmental Disabilities in a State Medicaid System.

de Leeuw et al. (2024) looked at Medicaid records for adults with intellectual and developmental disabilities. They counted how many had heart disease and other long-term illnesses.

The team split the group by diagnosis: autism, Down syndrome, and other intellectual disability. Heart disease showed up in 39 to 75 percent of each subgroup.

Heart disease is common in more than one third of these adults. The rate climbs even higher for some diagnostic groups.

The study makes clear that chronic illness, not just IDD, is the norm for this population.

Morin et al. (2012) saw the same pattern in Canada twelve years earlier: adults with ID had more heart and thyroid trouble than the general public. The new Medicaid numbers confirm the trend in a U.S. system.

Reichard et al. (2019) used Medicare claims and also found heavy chronic-disease loads. Together the two payer studies show the problem is widespread, not tied to one insurance type.

Heller et al. (2011) reviewed exercise and nutrition programs for adults with ID. Their positive results suggest lifestyle services could blunt the high heart-disease rates now documented in the Medicaid data.

If you serve adults with IDD, plan for cardiac risk the same day you plan for behavioral goals. Build routine blood-pressure and weight checks into day programs. Pair exercise with clear pictorial health education. These steps can catch problems early and may cut emergency visits later.