Table 1.
Demographics and characteristics by mode of invitation.
| Variable |
|
Email n=838 |
Internet n=309 |
P Value |
| Age, mean years ± SD |
|
64.8 ± 8.3 | 64.1 ± 9.3 | .095 |
| Male, n (%) |
|
511 (61.0) | 155 (50.2) | .001 |
| White race, n (%) |
|
793 (94.6) | 278 (90.0) | .005 |
| Education (≥HS), n (%) |
|
831 (99.2) | 287 (92.9) | <.001 |
| Married, n (%) |
|
600 (71.6) | 211 (68.3) | .27 |
| Insurance, n (%) | Medicare/Medicaid | 496 (59.2) | 150 (48.5) | .001 |
|
|
Private/employer | 537 (64.1) | 176 (57.0) | .028 |
|
|
No insurance | 28 (3.3) | 33 (10.7) | <.001 |
| Angina diagnosis, mean years ± SD |
|
9.7 ± 8.9 | 3.7 ± 6.4 | <.001 |
|
|
<1 year (%) | 130 (15.5) | 175 (56.6) |
|
|
|
1-5 years (%) | 236 (28.2) | 78 (25.2) |
|
|
|
6-10 years (%) | 185 (22.1) | 22 (7.1) |
|
|
|
>10 years (%) | 287 (34.3) | 34 (11.0) |
|
|
|
Unknown (%) | 27 (3.2) | 27 (8.7) |
|
| Cardiologist last 6 months | Yes | 608 (72.6) | 142 (46.0) | <.001 |
|
|
No | 183 (21.8) | 103 (33.3) |
|
|
|
Don’t have one | 47 (5.6) | 64 (20.7) |
|
| Antiplatelet dailya |
|
710 (84.7) | 203 (65.7) | <.001 |
| CHDb |
|
438 (52.3) | 87 (28.2) | <.001 |
| Prior revascularization |
|
518 (61.8) | 98 (31.7) | <.001 |
|
|
Prior PCIc | 437 (52.2) | 85 (27.5) | <.001 |
|
|
Prior CABGd | 288 (34.4) | 30 (9.7) | <.001 |
| Primary CHD group |
|
544 (64.9) | 102 (33.1) | <.001 |
a Antiplatelet is either aspirin or other antiplatelet agent
b CHD: coronary heart disease
c PCI: percutaneous coronary intervention
d CABG: coronary artery bypass grafting