Table 1.
Cohort characteristics: demographics and comorbidities. Statistics are shown for both internal and external datasets.
| Characteristics | Internal train and test | External test |
|---|---|---|
| No. of patients (studies) | 720 | 225 |
| No. of frames | Total: 65,031 | Total: 14,502 |
| Train: 38,202 | ||
| Validation: 13,637 | ||
| Test: 13,192 | ||
| Age (mean ± std) | 54.9 ± 17.4 | 62.6 ± 17.5 |
| Gender | Male: 53% | Male: 23% |
| Female: 47% | Female: 77% | |
| Race | White: 85% | White: 91.7% |
| Asian: 13.7% | Asian: 4.3% | |
| Black: 1.3% | Black: 4.0% | |
| Ethnicity | Hispanic or Latino: 12% | Hispanic or Latino: 8% |
| Not Hispanic or Latino: 88% | Not Hispanic or Latino: 92% | |
| Comorbidities at the time of TTE | Afib: 69 (10%) | Afib: 23 (10%) |
| Cancer: 13 (2%) | Cancer: 11 (5%) | |
| Hypertension: 152 (21%) | Hypertension: 91 (40%) | |
| Chronic kidney disease: 83 (12%) | Chronic kidney disease: 9 (4%) | |
| Coronary artery disease: 76 (11%) | Coronary artery disease: 12 (5%) | |
| Diabetics (Type I and Type II): 47 (7%) | Diabetics (Type I and Type II): 24 (11%) | |
| Diagnosis | ||
| CA | CA: 197 (27.4%) | CA: 165 (73.3%) |
| CP | CP: 184 (25.6%) | CP: 16 (7.1%) |
| Normal | Normal: 339 (47.1%) | Normal: 44 (19.6%) |
| Device | GE (92.5%) | GE (100%) |
| Philips (5.4%) | ||
| ACUSON (2.1%) |