Table 2.
Development and validation sample descriptions
| Sampling Goal | Events Identified by: | Base Population | Development Sample | Validation Sample |
|---|---|---|---|---|
| Suspected overdose cases | Opioid poisoning diagnostic codes | 2,271 | 483 | 848 |
| Opioid adverse effects diagnostic codes | 254 | 78 | 103 | |
| At risk for overdose | Pain, mental health, and substance abuse diagnostic codes | 87,550 | 222 with ≥30 days supply of ER/LA opioids | 373 with ≥30 days supply of ER/LA opioids |
| 223 with ≤30 days supply of ER/LA opioids | 372 with ≤30 days supply of ER/LA opioids | |||
| Total | 1006 | 1696 | ||
Note. ER/LA: extended‐release/long‐acting.