This query is used to count the number of drug era records (drug_era_id) for all persons, stratified by drug (drug_concept_id) and drug type (drug_type_concept_id). The input to the query is a value (or a comma-separated list of values) for a number of records per person, a drug_concept_id and a drug_concept_type_id. If the input is omitted, all existing value combinations are summarized.
Input:
| Parameter |
Example |
Mandatory |
Notes |
| drug_concept_id |
1300978, 1304643, 1549080 |
Yes |
Male, Female |
| drug_concept_typed_id |
38000182 |
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,
t.person_id,
count(1) as stat_value,
t.drug_TYPE_concept_id
FROM drug_era t
where
t.drug_concept_id in (1300978, 1304643, 1549080)
and
t.drug_TYPE_concept_id = 38000182
GROUP BY t.person_id,
t.drug_TYPE_concept_id,
t.drug_concept_id
having count(1) in (3,5)
ORDER BY t.person_id,
t.drug_TYPE_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. |
| person_id |
A foreign key identifier to the person who is subjected to the drug during the drug era. The demographic details of that person are stored in the person table. |
| drug_type_concept_id |
A foreign key to the predefined concept identifier in the vocabulary reflecting the type of drug exposure recorded. It indicates how the drug exposure was represented in the source data: as medication history, filled prescriptions, etc. |
Sample output record:
| Field |
Description |
| drug_concept_id |
|
| person_id |
|
| drug_type_concept_id |
|
|
|
