Table 1 Baseline characteristics of Health eHeart Study population with complete survey variables (N = 12280).
From: Volunteer Participation in the Health eHeart Study: A Comparison with the US Population
Characteristics | Referred from AHA (n = 4586) | UCSF patients (n = 2602) | Other specific referral source (n = 946) | Non-specific source (n = 4146) | P-value |
|---|---|---|---|---|---|
Age, mean years +/− SD | 50 +/− 12 | 57 +/− 15 | 52 +/− 14 | 50 +/− 15 | <0.001 |
Age group, % | <0.001 | ||||
20–29 | 7% | 5% | 7% | 12% | |
30–39 | 14% | 11% | 15% | 16% | |
40–49 | 24% | 15% | 20% | 18% | |
50–59 | 32% | 21% | 27% | 22% | |
60–69 | 19% | 29% | 21% | 22% | |
70–79 | 3% | 17% | 9% | 9% | |
≥80 | 0% | 3% | 1% | 1% | |
Sex, % male | 3% | 39% | 37% | 44% | <0.001 |
Race/ethnicity | <0.001 | ||||
Black, non-Hispanic | 8% | 1% | 2% | 3% | |
White, non-Hispanic | 82% | 83% | 88% | 81% | |
Asian, non-Hispanic | 2% | 6% | 3% | 7% | |
Hispanic | 5% | 7% | 4% | 5% | |
Others or mixed | 4% | 4% | 3% | 4% | |
% Married or partnered | 68% | 70% | 71% | 71% | 0.027 |
Education | <0.001 | ||||
≤High school | 7% | 3% | 7% | 4% | |
Some college or associate degree | 31% | 15% | 23% | 16% | |
College graduate or above | 62% | 82% | 70% | 80% | |
Annual Incom, % | <0.001 | ||||
<$20,000 | 9% | 6% | 5% | 6% | |
$20,000−<$75,000 | 43% | 23% | 32% | 28% | |
$75,000−<$100,000 | 17% | 12% | 16% | 14% | |
≥$100,000 | 32% | 59% | 47% | 52% | |
Medical conditions, % | |||||
Hypertension | 40% | 36% | 37% | 33% | <0.001 |
Hyperlipidemia | 45% | 42% | 44% | 41% | 0.001 |
Diabetes | 10% | 8% | 6% | 6% | <0.001 |
Coronary heart disease | 13% | 8% | 10% | 10% | <0.001 |
Stroke | 4% | 4% | 5% | 3% | 0.106 |
Heart failure | 5% | 2% | 7% | 3% | <0.001 |
Heart attack | 9% | 3% | 5% | 6% | <0.001 |
General health, % | <0.001 | ||||
Excellent | 12% | 19% | 15% | 23% | |
Very good | 33% | 37% | 36% | 39% | |
Good | 38% | 30% | 37% | 27% | |
Fair | 14% | 11% | 10% | 9% | |
Poor | 3% | 2% | 3% | 1% | |
Smoking, % | <0.001 | ||||
Never | 66% | 62% | 59% | 67% | |
Past | 29% | 35% | 36% | 30% | |
Current | 5% | 3% | 5% | 4% | |
Sleep duration, h/night | <0.001 | ||||
≤6 | 43% | 30% | 35% | 31% | |
7 to 8 | 53% | 63% | 60% | 64% | |
≥9 | 5% | 7% | 5% | 5% | |
