Table 1 Demographic and imaging study characteristics
From: Blinded, randomized trial of sonographer versus AI cardiac function assessment
Characteristic | Total (n = 3,495) | AI (n = 1,740) | Sonographer (n = 1,755) |
|---|---|---|---|
Age (year) | 66.3 ± 17.0 | 66.1 ± 16.8 | 66.6 ± 17.1 |
Sex (n, %) | |||
Male | 1,983 (57%) | 982 (56%) | 1,001 (57%) |
Female | 1,512 (43%) | 758 (44%) | 754 (43%) |
Race (n, %) | |||
Non-Hispanic white | 2,041 (58%) | 1,032 (59%) | 1,009 (57%) |
Black | 479 (14%) | 230 (13%) | 249 (14%) |
Hispanic | 405 (12%) | 203 (12%) | 202 (12%) |
Asian | 273 (8%) | 123 (7%) | 150 (9%) |
Other | 237 (7%) | 120 (7%) | 117 (7%) |
Unknown | 38 (1%) | 20 (1%) | 18 (1%) |
Pacific Islander | 14 (0%) | 8 (0%) | 6 (0%) |
American Indian | 8 (0%) | 4 (0%) | 4 (0%) |
Body mass indexa | 26.5 ± 6.3 | 26.6 ± 6.3 | 26.5 ± 6.2 |
Comorbidities (n, %) | |||
Hypertension | 2,019 (58%) | 990 (57%) | 1,029 (59%) |
Diabetes | 884 (25%) | 441 (25%) | 443 (25%) |
Coronary artery disease | 1,099 (31%) | 547 (31%) | 552 (31%) |
Chronic kidney disease | 882 (25%) | 460 (26%) | 422 (24%) |
Atrial fibrillation | 867 (25%) | 450 (26%) | 417 (24%) |
Previous stroke | 459 (13%) | 225 (13%) | 234 (13%) |
Previous clinical EF | 58.1 ± 14.3 | 58.1 ± 14.2 | 58.0 ± 14.4 |
Method of LVEF evaluation (n, %) | |||
Single plane (A4C) | 2,249 (64%) | 1,107 (64%) | 1,142 (65%) |
Biplane | 1,246 (36%) | 633 (36%) | 613 (35%) |
Study quality (n, %) | |||
Poor | 648 (19%) | 314 (18%) | 334 (19%) |
Adequate | 1,725 (49%) | 875 (50%) | 850 (48%) |
Good | 236 (7%) | 114 (7%) | 122 (7%) |
Not specified | 886 (25%) | 437 (25%) | 449 (26%) |
Location (n, %) | |||
Inpatient | 2,067 (59%) | 1,033 (59%) | 1,034 (59%) |
Outpatient | 1,428 (41%) | 707 (41%) | 721 (41%) |
