Factor affecting severe atherothrombotic cerebral infarction in patients with type 2 diabetes mellitus: Large-scale claim database analysis of Japan.

Aims: This study aimed to investigate the factors associated with the exacerbation of the severity of atherothrombotic brain infarction at discharge in patients with type 2 diabetes using a large-scale claims database.

Materials And Methods: This retrospective cross-sectional study utilized the Medical Data Vision administrative claims database, a nationwide database in Japan using acute care hospital data, and the Diagnosis Procedure Combination system. Diagnosis Procedure Combination data collected between April 1, 2008, and December 31, 2022, were extracted.