Table 1.
Characteristics of Participants by Level of Moderate to Vigorous Physical Activity (% or mean ± SD N = 7,098)
| Variable | Quartilea 1 |
Quartile 2 | Quartile 3 | Quartile 4 | Total |
|---|---|---|---|---|---|
| Women, n (%) | 1164 (65.7) |
1026 (57.8) |
904 (51.0) |
750 (42.1)b |
3844 (54.2) |
| African American, n (%) | 749 (42.3) |
611 (34.4) |
495 (28.0) |
379 (21.3)b |
2234 (31.5) |
| Stroke-belt, n (%) | 991 (56.0) |
1001 (56.4) |
989 (55.8) |
913 (51.3)b |
3894 (54.9) |
| Education, n (%) | |||||
| Less than high school | 203 (11.5) |
111 (6.3) |
85 (4.8) | 48 (2.7) | 447 (6.3) |
| High school graduate | 544 (30.7) |
445 (25.1) |
366 (20.7) |
263 (14.8) | 1618 (22.8) |
| Some college | 486 (27.4) |
561 (31.6) |
469 (26.5) |
385 (21.6) | 1901 (26.8) |
| College graduate and above | 538 (30.4) |
659 (37.1) |
851 (48.1) |
1084 (60.9)b |
3132 (44.1) |
| Smoking, n (%) | 255 (14.4) |
219 (12.3) |
165 (9.3) |
112 (6.3)b |
751 (10.6) |
| Hypertension, n (%) | 1224 (69.1) |
987 (55.6) |
831 (46.9) |
657 (36.9)b |
3699 (52.1) |
| Diabetes, n (%) | 454 (25.6) |
308 (17.3) |
215 (12.1) |
162 (9.1)b |
1139 (16.1) |
| Age (yr) | 75.2±8.1 | 70.9±7.7 | 68.1±7.8 | 66.3±7.7b | 70.1±8.5 |
| Body Mass Index (kg*m−2) | 30.1±6.4 | 29.3±5.8 | 28.3±5.3 | 26.9±4.6b | 28.6±5.7 |
| Systolic blood pressure (mmHg) | 130.1±16.3 | 126.4±15.5 | 124.4±14.7 | 121.5±14.3b | 125.6±15.6 |
| Diastolic blood pressure (mmHg) | 76.4±9.6 | 76.3±9.5 | 76.3±9.0 | 75.8±8.8b | 76.2±9.2 |
a
Denotes the quartiles of the proportion of total time spent in moderate to vigorous physical activity.
b
Denotes significant difference among quartiles (P<0.001), tested by Analysis of Variance (continuous variables) or Chi-square tests (categorical variables)