Development and validation of algorithms to classify type 1 and 2 diabetes according to age at diagnosis using electronic health records

摘要

Flow diagram depicting creation of the study cohorts using the sub-population of people in the Hong Kong Diabetes Surveillance Database who were also enrolled in the Hong Kong Diabetes Register (HKDR). Diabetes type classification consisted of 2 steps: (1) comprehensive assessment, and (2) chart review of cases initially flagged as type 1 diabetes