The Impact of Medication Adherence in Patients With Type 2 Diabetes and Disabilities

Samsung Medical Center

Status: Completed

Conditions: Disabilities; Type 2 Diabetes

Treatments: Behavioral: Adherence group; Behavioral: No adherence group

Study type: Observational

Funder types: Other

Identifiers

NCT07052708

MedicationAdherence_Disability

Details and patient eligibility

About

Individuals with disabilities and type 2 diabetes tend to have worse clinical outcomes. To identify modifiable factors that may improve these outcomes, the investigators evaluated the role of medication adherence. A retrospective, cohort study was conducted using data from the Korean National Health Insurance Service (K-NHIS) database.

Full description

Type 2 diabetes mellitus (T2DM) is a well-established risk factor for cardiovascular disease (CVD). In recent years, self-care has become a central component of diabetes management, with growing emphasis on medication adherence, physical activity, and lifestyle modifications to reduce CVD risk and improve long-term outcomes. As a result, limited capacity for self-care has been increasingly recognized as a major contributor to health disparities.

Approximately 25% of individuals with disabilities have T2DM, and those with physical or mental impairments often face substantial barriers to effective self-management. These challenges-including limited mobility and reduced access to health information-can lead to poor glycemic control and heightened cardiovascular risk.

However, most prior studies have primarily focused on describing the elevated risk of CVD in individuals with disabilities. Whether suboptimal medication adherence mediates the association between disability and cardiovascular outcomes remains unclear.

Therefore, this study aims to compare medication adherence between patients with and without disabilities and to assess whether differences in adherence contribute to disparities in the incidence of CVD.

Enrollment: 365,295 patients

Sex: All

Volunteers: No Healthy Volunteers

Inclusion criteria

• Patients who newly diagnosed T2DM between between January 1, 2010, and December 31, 2023

Exclusion criteria

• individuals with a history of MI, stroke, percutaneous coronary intervention, peripheral arterial disease, chronic kidney disease, or cancer before the diagnosis of diabetes were excluded.
• individuals with who already had diabetics related complication

Trial design

365,295 participants in 2 patient groups

Disability

Description:

Individuals were classified as having a disability if they were officially registered as of the index date. Physical disability included conditions such as limb impairment, brain lesion, visual or auditory impairment, speech impairment, facial disfigurement, and epilepsy. Mental disability included intellectual disability, autism spectrum disorder, and psychiatric disorders.

Treatment:

Behavioral: No adherence group

Behavioral: Adherence group

No disability

Description:

Individuals who were not officially registered with any physical or mental disability as of the index date.