Table 1.
Examples of Big Data Studies From Various Sources
| Type | Specific Source | Example |
|---|---|---|
| EHR | Academic medical center | EHR data used to develop and validate a prediction mode for adverse outcomes3 |
| Administrative data | Medicare Part A | Comparative effectiveness of percutaneous coronary intervention and coronary bypass surgery21 |
| National registry | Get With The Guidelines‐Resuscitation Registry | Derivation and validation of a mortality prediction tool after pediatric cardiac arrest25 |
| Imaging | MRIs | Cardiac MRI acquitition plane recognition30 |
| Integration of multiple data types | MRI, genetic, biomarker, and clinical registry | Hypertrophic Cardiomyopathy Registry31 |
| Social media/internet | Smart watch and internet application | Identification of cardiac arrhythmias using a smartwatch: the Apple Heart Study33 |
| Embedded clinical trial | National Cardiovascular Data Registry | Comparison of radial and femoral approaches for percutaneous coronary intervention in women: SAFE‐PCI for Women trial45 |
| Machine learning | Hospital heart failure registry | Classification of patients with heart failure57 |
EHR indicates electronic health record; MRI, magnetic resonance imaging; SAFE‐PCI, Study of Access Site for Enhancement of Percutaneous Coronary Intervention.