Journal of Health Informatics and Statistics
Network Analysis of Sex Differences in Cardiovascular Disease Comorbidities
Objectives: Cardiovascular disease (CVD) co-occurs with multiple chronic conditions, but their structural relationships remain underexplored. This study aimed to explore the comorbidity patterns and disease network structures of CVD patients using nationwide claims data, with attention to differences by sex.Methods: Using National Health Insurance Service claims data from 2002 to 2019, adults diagnosed with CVD (KCD: I20-25) were identified, and comorbidities recorded before the first CVD diagnosis were extracted. …