My understanding is that 814 and 1814 are analogous analyses, whereas in one case value_as_concept_id = 0 is counted in and the other case is not: https://github.com/OHDSI/Achilles/blob/113433da2ce33ec26463a49f45278ba297a75987/inst/sql/sql_server/analyses/1814.sql#L27 https://github.com/OHDSI/Achilles/blob/113433da2ce33ec26463a49f45278ba297a75987/inst/sql/sql_server/analyses/814.sql#L12
My understanding is that 814 and 1814 are analogous analyses, whereas in one case value_as_concept_id = 0 is counted in and the other case is not:
Achilles/inst/sql/sql_server/analyses/1814.sql
Line 27 in 113433d
Achilles/inst/sql/sql_server/analyses/814.sql
Line 12 in 113433d