In Belgium, various structures and reimbursement programs are in place for managing Type 2 Diabetes Mellitus (T2DM). The Diabetes Care Trajectory is primarily utilized for patients who require a maximum of two insulin injections per day. In contrast, patients needing multiple daily insulin injections are managed under a diabetes convention program.

The Diabetes Care Trajectory has been operational since 2009. However, unlike patients in the diabetes convention program, where the profile and quality of care are regularly audited, there is limited information available regarding the profile and outcomes of patients within the Care Trajectory. This retrospective study aims to compare the profiles, including complications and quality of care, of T2DM patients across both groups.

This retrospective study will collect data from T2DM patients enrolled in either the Diabetes Care Trajectory or the diabetes convention program. The data gathered will encompass quality of care, clinical status, complications, and metabolic state.

The profiles of these patient populations will be compared cross-sectionally for each year within the study period (2009-2024). Additionally, a longitudinal analysis will be conducted to examine the evolution of these profiles over the entire study period. Data will be extracted from electronic case records maintained at participating sites across Belgium.

Inclusion Criteria:

• Followed in one of the NexusHealth hospitals in Belgium: https://www.nexuzhealth.com/en/why-nexuzhealth/patients/affiliated-healthcare-institutions
• Having being diagnosed with type 2 diabetes mellitus
• Followed in the Diabetes Care Trajectory or in the Diabetes Convention (group B) in Belgium Exclusion Criteria: no specific exclusion criteria

T2DM patients being followed up in the Diabetes Care Trajectory or in the Diabetes Convention (group B) in Belgium