Observational Healthcare Databases
Outcome definitions relied mainly on diagnosis codes, and validity of claims-based algorithms can vary depending on code choice and logic. All databases were standardised to the OMOP Common Data Model version 5.3 to enable consistent repli…
1 sources - 5 claims
Outcome definitions relied mainly on diagnosis codes, and validity of claims-based algorithms can vary depending on code choice and logic. All databases were standardised to the OMOP Common Data Model version 5.3 to enable consistent replication across sources. Residual confounding from unavailable socioeconomic and behavioural variables cannot be ruled out. Across all databases, 1.2 million BP-CCB initiators and 9.3 million NP-CCB initiators were identified before matching, with 881,758 remaining in each group after matching. Nine databases were used, spanning the USA, Europe, Japan, and Australia, covering January 2000 through June 2023.