2 Medical Research Council Population Health Research Unit and Clinical Trial Service Unit and Epidemiological Studies Unit,Nuffield Department of Population Health, University of Oxford, Oxford OX3 7LF, UK.
3 Department of Medical Statistics, London School of Hygiene and Tropical Medicine, Keppel Street, London WC1E 7HT, UK.
A broad review is given of the impact of big data on various aspects of investigation. There is some but not total emphasis on issues in epidemiological research.
Keywords:
Big data; Electronic health records; Epidemiology; Metrology; Precision.