Table 1 Characteristics of included cohorts
Country | Cancer data source | Diagnosis years | Medication data source | Outcome data source | End follow-up | Outcome |
|---|---|---|---|---|---|---|
Wales (SAIL databank) | Welsh Cancer Intelligence and Surveillance Unit (National Cancer registry for Wales) | 2000 to 2016 | Primary Care GP dataset (GP prescription records) | Annual District Death Extract | 2019 | Cancer-specific death |
Scotland (eDRIS) | Scottish Cancer Registry | 2009 to 2016 | Prescribing Information System (dispensed medications) | National Records of Scotland Death Records | 2019 | Cancer-specific death |