Table 1.
Established databases included in DISCOVER CKD.
Fig 1.
DISCOVER CKD CDM architecture.
Blue dashed line denotes potential data sources that could be added to the flexible CDM. CDM, common data model; CKD, chronic kidney disease; CPRD, Clinical Practice Research Datalink; DOPPS, Dialysis Outcomes and Practice Patterns Study; ETL, extract, transform, load; JMDV, Japan Medical Data Vision; LCED, Limited Claims and Electronic Health Record Dataset; OMOP, Observational Outcomes Medical Partnership.
Fig 2.
Simplified entity relationship diagram.
*Prescription dose and dose standardization are pending. CDM, common data model; CKD, chronic kidney disease; ID, identification; Rx, prescription.
Fig 3.
Example laboratory unit harmonization: Creatinine units.
Acceptable units were defined as any unit that was valid for the laboratory and could be converted to the standardized unit. CKD, chronic kidney disease.
Table 2.
Secondary data and baseline covariates of patients included in DISCOVER CKD.