Table 1.
Participant characteristics by baseline heart rate quintile
| Baseline HR Quintile | 1 | 2 | 3 | 4 | 5 | p-value for trend |
|---|---|---|---|---|---|---|
| Heart rate* | 50.9 (36–55) | 58.1 (56–60) | 62.9 (61–65) | 68.3 (66–71) | 78.1 (72–130) | <0.001 |
| Age | 62.9 (10.1) | 62.0 (10.3) | 61.8 (10.2) | 61.6 (10.1) | 62.5 (10.2) | 0.088 |
| % Male | 60.1 | 47.0 | 43.3 | 43.0 | 41.1 | <0.001 |
| Ethnicity | ||||||
| % White | 38.9 | 38.4 | 39.1 | 37.5 | 37.2 | 0.837 |
| % Black | 31.0 | 26.5 | 25.3 | 27.3 | 29.2 | 0.005 |
| % Hispanic | 19.9 | 22.7 | 22.5 | 22.3 | 23.0 | 0.226 |
| % Chinese | 10.2 | 12.5 | 13.2 | 12.9 | 10.5 | 0.051 |
| % Current Smoker | 12.2 | 13.6 | 12.2 | 14.2 | 13.2 | 0.586 |
| % Family history CHD | 41.7 | 42.7 | 40.2 | 41.7 | 48.1 | 0.001 |
| SBP (mmHg) | 126.8 (23.8) | 124.8 (21.4) | 126.2 (21.2) | 126.0 (20.0) | 129.7 (20.3) | <0.001 |
| DBP (mmHg) | 70.3 (10.0) | 70.7 (10.2) | 71.9 (10.1) | 72.9 (10.2) | 74.2 (10.4) | <0.001 |
| Pulse Pressure (mmHg) | 56.5 (19.7) | 54.0 (17.2) | 54.3 (16.8) | 53.1 (15.7) | 55.5 (16.3) | 0.933 |
| LDL (mg/dL) | 115.7 (29.7) | 118.9 (30.4) | 116.7 (32.5) | 116.8 (31.5) | 118.0 (33.4) | 0.259 |
| HDL (mg/dL) | 50.9 (14.5) | 51.5 (15.1) | 51.2 (15.0) | 50.7 (14.7) | 50.4 (14.7) | 0.188 |
| Triglycerides† (mg/dL) | 100 (72,146) | 105 (76,151) | 114 (79,161) | 118 (80,170) | 123 (85,180) | <0.001 |
| BMI (kg/m2) | 27.5 (4.9) | 28.0 (5.2) | 28.2 (5.3) | 28.7 (5.8) | 29.6 (6.0) | <0.001 |
| Waist Circ. (cm) | 96.1 (13.3) | 97.1 (14.2) | 97.6 (14.0) | 98.8 (14.8) | 101.7 (15.3) | <0.001 |
| CRP‡ (mg/L) | 1.4 (0.7, 3.1) | 1.7 (0.7, 3.9) | 2.0 (0.9, 4.3) | 2.2 (1.0, 4.7) | 2.8 (1.2, 5.7) | <0.001 |
| % Anti-HTN med use | 40.3 | 33.8 | 34.1 | 36.6 | 41.6 | <0.001 |
| % AV-blocker use | 20.6 | 12.8 | 11.7 | 9.6 | 8.0 | <0.001 |
| % Lipid lowering med | 15.0 | 14.1 | 16.1 | 16.6 | 19.0 | 0.026 |
| % Diabetes | 7.5 | 8.9 | 10.5 | 14.9 | 23.2 | <0.001 |
| Mod. and Vigorous PA‡ | 105 (101) | 101 (103) | 94 (102) | 92 (92) | 84 (88.9) | <0.001 |
| % with Thoracic Aorta Calcium | 27.1 | 26.3 | 27.6 | 28.2 | 30.9 | 0.023 |
| % ≥$40,000 Income | 55.5 | 51.5 | 53.3 | 48.6 | 47.2 | <0.001 |
| % ≥ High School | 68.7 | 65.6 | 64.2 | 60.5 | 59.3 | <0.001 |
| Education |
Data presented as mean and SD, unless otherwise indicated
*
Mean and minimum-maximum values
†
Median and Inter-quartile range
‡
MET-hours/week