This query is used to provide summary statistics for drug quantity (quantity) across all drug exposure records: the mean, the standard deviation, the minimum, the 25th percentile, the median, the 75th percentile, the maximum and the number of missing values. No input is required for this query.
Input:
<None>
Sample query run:
The following is a sample run of the query.
-- Oracle
SELECT min(tt.stat_value) AS min_value
, max(tt.stat_value) AS max_value
, avg(tt.stat_value) AS avg_value
, (round(stdDev(tt.stat_value)) ) AS stdDev_value
, PERCENTILE_DISC(0.25) WITHIN GROUP( ORDER BY tt.stat_value )
AS percentile_25
, PERCENTILE_DISC(0.5) WITHIN GROUP (ORDER BY tt.stat_value )
AS median_value
, PERCENTILE_DISC(0.75) WITHIN GROUP (ORDER BY tt.stat_value )
AS percentile_75
FROM
( SELECT t.quantity AS stat_value
FROM drug_exposure t
where t.quantity > 0
) tt
;
Output:
Output field list:
| Field |
Description |
| drug_exposure_id |
A system-generated unique identifier for each drug utilization event. |
| quantity |
The quantity of drug as recorded in the original prescription or dispensing record. |
| percentile_25_date |
|
| median_date |
|
| percentile_75_date |
|
Sample output record:
| Field |
Description |
| drug_exposure_id |
|
| quantity |
|
| percentile_25_date |
|
| median_date |
|
| percentile_75_date |
|
| 