M3 Cohort
M3 cohort was built to evaluate the prognostic performance of the metabolic phenotyping by CT-based multi-outcome MLP model for predicting 10-year mortality. Data of 34,407 individuals aged 50 or older who underwent unenhanced abdomen CT for any reason between January 2012 and December 2021 were reviewed (IRB No. 4-2021-0771). After excluding those without evaluable CT scans, outliers in clinical values or missing values, a total of 10,141 individuals remained. The data of remained individuals were reviewed for occurrence of death and time to event between index date (the date when the CT was taken) and 31 December 2022, which was ascertained by reviewing the death certificate in the electronic record system of the institution. The last follow-up dates for individuals were the death date, the last outpatient visit date, the discharge date within 10 years or 4000 days if the observation period exceeded 4000 days. Age, sex and Charlson comorbidity index (CCI)12 at the index date were collected.
