2016
Quality of EHR data extractions for studies of preterm birth in a tertiary care center: guidelines for obtaining reliable data
Knake L, Ahuja M, McDonald E, Ryckman K, Weathers N, Burstain T, Dagle J, Murray J, Nadkarni P. Quality of EHR data extractions for studies of preterm birth in a tertiary care center: guidelines for obtaining reliable data. BMC Pediatrics 2016, 16: 59. PMID: 27130217, PMCID: PMC4851819, DOI: 10.1186/s12887-016-0592-z.Peer-Reviewed Original ResearchConceptsEHR data extractionElectronic health recordsWhite blood cell countTertiary care centerData extractionBlood cell countInitial hemoglobinNeonatal recordsChart reviewFuture study designsPreterm birthChart extractionGestational ageOutside hospitalManual data abstractionBirth weightCare centerDirect bilirubinLaboratory valuesCell countBirth dataStudy designHealth recordsManual abstractionGuidelinesChapter 9 Clinical Data Repositories: Warehouses, Registries, and the Use of Standards
Nadkarni P. Chapter 9 Clinical Data Repositories: Warehouses, Registries, and the Use of Standards. 2016, 173-185. DOI: 10.1016/b978-0-12-803130-8.00009-9.Peer-Reviewed Original ResearchOperational data storeData martVirtual data integrationClinical data martClinical data warehouseData storesData warehouseData integrationRapid queryData repositoryData elementsUse of standardsWarehouseData sourcesRepositoryPhysical integrationProcess of extractionQueriesDifferent kindsMartUsabilityData extraction
2003
Achieving Evolvable Web-Database Bioscience Applications Using the EAV/CR Framework: Recent Advances
Marenco L, Tosches N, Crasto C, Shepherd G, Miller PL, Nadkarni PM. Achieving Evolvable Web-Database Bioscience Applications Using the EAV/CR Framework: Recent Advances. Journal Of The American Medical Informatics Association 2003, 10: 444-453. PMID: 12807806, PMCID: PMC212781, DOI: 10.1197/jamia.m1303.Peer-Reviewed Original ResearchConceptsEAV/CRXML-based protocolHuman Brain ProjectDatabase supportData querySemantic descriptorsAutomatic generationNeuroscience databasesCR frameworkScientific domainsBrain ProjectInterclass relationshipsSchema maintenanceFrameworkBioscience applicationsResearch focusQueriesMetadataDatabaseUMLSUsersData extractionDifferent subsetsSchemaParticular research focus
1998
Data Extraction and Ad Hoc Query of an Entity—Attribute—Value Database
Nadkarni P, Brandt C. Data Extraction and Ad Hoc Query of an Entity—Attribute—Value Database. Journal Of The American Medical Informatics Association 1998, 5: 511-527. PMID: 9824799, PMCID: PMC61332, DOI: 10.1136/jamia.1998.0050511.Peer-Reviewed Original ResearchConceptsElectronic patient record systemQuery problemAd-Hoc QueriesReal-time retrievalPatient record systemData warehousingEntity attributesComplex subproblemsData retrievalQueriesValue databaseRecord systemSuch systemsRetrievalValue tablePatient dataFront endAttributesMetadataWarehousingDatabaseUsersData extractionSubproblemsIndividual attributes