Outcome | Database | Implication from validation |
---|---|---|
Surgery to bladder | - Hospital Episode Statistics (HES) | - Historically high quality - HES data alone sufficient |
Chemotherapy regimens | - Hospital Episode Statistics (HES) - Systemic Anti-Cancer Therapy (SACT) | - Historically high quality to detect regimens - The exact date of administrations can additionally be found in the SACT data (and clinical noting if required) - HES data alone sufficient |
Radiotherapy regimens | - Hospital Episode Statistics (HES) - National Radiotherapy Data set (RTDS) | - More recent high quality (since 2014) to detect regimens - Due to the validation of the radiotherapy LINAC data, the RTDS will be used to supplement missing events |
Cystoscopy | - Hospital Episode Statistics (HES) - Diagnostic Imaging Data set (DID) | - Recent high quality (since 2016) - Consistent high quality TURBT coding - Historically lower quality of flexible cystoscopy coding - Prior to trial data confidence, a database query process may be necessary (check flag = if no flexible cystoscopy is identified prior to TURBT) - To confirm identification of subsequent surveillance flexible cystoscopy events, the DID will be used as a supplement |
BCG regimens | - Hospital Episode Statistics (HES) - Systemic Anti-Cancer Therapy (SACT) | - More recent high quality (since 2013) - SACT data will supplement missing administration details |
Censor | - Hospital Episode Statistics (HES) | - Data quality historically high, but reduced recently (post-2016) - Therefore, upon query at site, the most recent event in the clinical noting should be confirmed |