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Table 2 Top 10 conditions of SNOMED-CT inpatient conditions in the raw versus the CDM data format

From: The impact of standardizing the definition of visits on the consistency of multi-database observational health research

  Raw data CDM data
SNOMED-CT concept CCAE PR (%) Optum PR (%) SD CCAE PR (%) Optum PR (%) SD
Essential hypertension 0.84 0.90 0.006 0.87 0.84 0.002
Single live birth 0.80 1.02 0.024 0.80 0.99 0.020
Mother delivered 0.72 0.82 0.011 0.72 0.79 0.008
FTND 0.58 0.64 0.007 0.60 0.62 0.003
Chest pain 0.44 0.50 0.008 0.51 0.46 0.007
Abdominal pain 0.41 0.50 0.015 0.50 0.45 0.007
Hyperlipidemia 0.39 0.39 0.001 0.40 0.36 0.007
GERD 0.33 0.30 0.005 0.34 0.28 0.011
T2DM 0.32 0.35 0.004 0.34 0.32 0.003
Dyspnea 0.26 0.32 0.011 0.31 0.29 0.004
  1. CCAE = Truven MarketScan Commercial Claims and Encounters; Optum = Optum Clinformatics; CDM = Observational Medical Outcomes Partnership (OMOP) Common Data Model; FTND = Full term normal delivery; GERD = Gastro-esophageal reflux disease; T2DM = Type 2 diabetes mellitus; PR = Prevalence; SD = Standardized Difference.