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visit_occurrence

Reading from

  1. Reading from basedata.csv
  2. Reading from fulong.csv

Reading from basedata.csv

The stem_table.record_source_value is used to link Stem table visits to the Visit Occurrence table. This variable is not included in OMOP CDM v6 + oncology extensions and should be removed from the episode table after all mappings are finished.

Inclusion/Exclusion criteria

No filters applied

Destination Field Source field Logic Comment field
visit_occurrence_id     Auto-increment
person_id p_id    
visit_concept_id     Create “standard” visit and MRI visit custom concepts.
For standard visits, map to custom concept ‘Baseline Visit’ - 2000000048.
For MRI visits, if variable ‘mri_taken.0’ has value 1, map to ‘Baseline Visit - MRI’ - 2000000087
visit_start_date year_diagnosis   year-07-01
visit_start_datetime year_diagnosis   year-07-01 00:00:00
visit_end_date year_diagnosis   year-07-01
visit_end_datetime year_diagnosis   year-07-01 00:00:00
visit_type_concept_id     Clinical Study visit - 44818519
provider_id      
care_site_id      
visit_source_value      
visit_source_concept_id     0
admitted_from_concept_id     0
admitted_from_source_value      
discharge_to_concept_id     0
discharge_to_source_value      
preceding_visit_occurrence_id      
record_source_value p_id   Concatenate p_id-“basedata”-visit_type. Visit type is either “standard” or “mri” (e.g. 1-basedata-mri)

Reading from fulong.csv

The record_source_value is used to link stem_table visits to the visit_occurrence table. This variable is not included in OMOP CDM v6 + oncology extensions and should be removed from the episode table after all mappings are finished.

Inclusion/Exclusion criteria

No filters applied

Destination Field Source field Logic Comment field
visit_occurrence_id     Auto-increment
person_id p_id    
visit_concept_id time   Create “standard” visit and MRI visit custom concepts, and map as variable_value_mapping.
Custom concepts follow the following convention for standard visits: “Follow-up Visit” + “time” value.
If variable ‘mri_taken’ has value 1, map to custom concept “Follow-up Visit” + “time” + “- MRI”. Custom concepts can be found in 2b_concepts.csv
visit_start_datetime days_psa_diag   year_diag (from basedata) + days_psa_diag + 00:00:00
visit_end_date days_psa_diag   year_diag (from basedata) + days_psa_diag
visit_end_datetime days_psa_diag   year_diag (from basedata) + days_psa_diag + 00:00:00
visit_type_concept_id     Clinical Study visit - 44818519
provider_id      
care_site_id      
visit_source_value time    
visit_source_concept_id     0
admitted_from_concept_id     0
admitted_from_source_value      
discharge_to_concept_id     0
discharge_to_source_value      
preceding_visit_occurrence_id     fulong
record_source_value p_id
time
  Concatenate p_id-“basedata”-time-visit_type. Visit type is either “standard” or “mri” (e.g. 1-fulong-35-mri)

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