Charlson Comorbidity Index - does the feature capture CCI = 0?

[dimshitc]

(

FeatureExtraction/inst/sql/sql_server/CharlsonIndex.sql

Line 389 in 114785a

SELECT cohort_definition_id,

)
this query uses INNER JOINS , so if a person doesn't have any qualifying event from charlson_concepts, it will be excluded from the analysis, while such a person should get CCI = 0