Abstract
Background Electronic health records databases are important sources of data for research and health practice. The aim of this study was to assess the quality of the data in REPLICCAR II, the Brazilian cardiovascular surgery database based in São Paulo State.
Study Design The REPLICCAR II database contains data from 9 institutions in São Paulo, with more than 700 variables. We audited data entry at 6 months (n=107 records) and 1 year (n=2229 records) after the start of data collection. We present a modified Aggregate Data Quality Score (ADQ) for 30 variables in this analysis.
Results The agreement between the data independently entered by a database operator and a researcher was good for categorical data (Cohen κ = 0.70, 95%CI 059, 0.83). For continuous data, the intraclass coefficient was high for all variables, with only 2 of 15 continuous variables having an ICC of less than 0.90. In an indirect audit, 74% of the selected variables (n = 23) showed a good ADQ score, regarding completeness and reliability.
Conclusions Data entry in the REPLICCAR II database is satisfactory and can provide accurate and reliable data for research in cardiovascular surgery in Brazil.
Abbreviations
- ADQ
- Aggregate Data Quality Score;
- CABG
- coronary artery bypass graft;
- ESTS
- European Society of Thoracic Surgeons;
- ICC
- Intra Class Correlation Coefficient.