This query is used to count all drugs (drug_concept_id) across all drug exposure records stratified by condition (relevant_condition_concept_id). The input to the query is a value (or a comma-separated list of values) of a drug_concept_id and a relevant_condition_concept_id. If the input is omitted, all existing value combinations are summarized.
Input:
| Parameter |
Example |
Mandatory |
Notes |
| list of drug_concept_id |
906805, 1517070, 19010522 |
Yes |
|
| list of relevant_condition_concept_id |
26052, 258375 |
Yes |
|
Sample query run:
The following is a sample run of the query. The input parameters are highlighted in blue
SELECT
t.drug_concept_id,
count(1) as drugs_count,
t.relevant_condition_concept_id
FROM drug_exposure t
where
t.drug_concept_id in (906805, 1517070, 19010522)
and t.relevant_condition_concept_id in (26052, 258375)
group by t.relevant_condition_concept_id, t.drug_concept_id
;
Output:
Output field list:
| Field |
Description |
| drug_concept_id |
A foreign key that refers to a standard concept identifier in the vocabulary for the drug concept. |
| relevant_condition_concept_id |
A foreign key to the predefined concept identifier in the vocabulary reflecting the condition that was the cause for initiation of the procedure. Note that this is not a direct reference to a specific condition record in the condition table, but rather a condition concept in the vocabulary |
| Count |
The number of individual drug exposure occurrences used to construct the drug era. |
Sample output record:
| Field |
Description |
| drug_concept_id |
|
| relevant_condition_concept_id |
|
| Count |
|
|
|
