Table 2. Summary statistics of the DADa, NACRSb, and PINc data sets.
| Summary statistics | Data set | ||
|---|---|---|---|
| DAD | NACRS | PIN | |
| Patients with at least 1 record, n | 49,075 | 50,628 | 49,052 |
| Records, n | 273,910 | 3,974,403 | 28,807,136 |
| Aggregated records, n | 166,083 | 173,507 | 997,997 |
| Unique ICD-10-CAd or ATCe codes and their parent codes, n | 9651 | 7803 | 2315 |
| Codes per aggregated record, mean (SD) | 24.90 (16.55) | 15.27 (12.55) | 33.31 (18.95) |
| Time range | 2004‐2022 | 2010‐2022 | 2004‐2022 |
a
DAD: Discharge Abstract Database.
b
NACRS: National Ambulatory Care Reporting System.
c
PIN: Pharmaceutical Information Network.
d
ICD-10-CA: International Classification of Diseases, Tenth Revision, Canada.
e
ATC: Anatomical Therapeutic Chemical.