ETL code for converting Korean National Sample Cohort (NSC) derived from national insurance health service into OMOP-CDM v5 developed by Ajou University
Some sick orders of raw data are not matched with main_sick and sub_sick (n=47,868,219)
For instance, 'J303' code is recorded as third condition in 40T of raw data but recorded as the primary condition of 20T.
Some sick orders of raw data are not matched with main_sick and sub_sick (n=47,868,219) For instance, 'J303' code is recorded as third condition in 40T of raw data but recorded as the primary condition of 20T.