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Table name: drug_exposure

Reading from 1_covid19_tpp_gp_scripts.txt.gz.pure

Rows are skipped if:

  • dmd_code is -1 or empty
  • date is emtpy or in 2037

Destination Field Source field Logic Comment field
drug_exposure_id     Auto-increment
person_id eid    
drug_concept_id dmd_code Look up standard concept via “maps to” relationship. code -1 (no dm+d code) is skipped
drug_exposure_start_date issue_date If 1902-02-02 or 1903-03-3, set date to yob-07-01 (field 34 in baseline)  
drug_exposure_start_datetime issue_date    
drug_exposure_end_date issue_date use the same as the start date  
drug_exposure_end_datetime issue_date    
verbatim_end_date      
drug_type_concept_id     32838 - ‘EHR prescription’
stop_reason      
refills      
quantity      
days_supply      
sig      
route_concept_id      
lot_number      
provider_id      
visit_occurrence_id     visit_id from ‘eid’ & ‘date’
visit_detail_id      
drug_source_value dmd_code    
drug_source_concept_id dmd_code Look up source concept via “maps to” relationship.  
route_source_value      
dose_unit_source_value      
data_source     covid19 gp_tpp

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