Table 1.
Baseline Characteristics of Study Participants by Physical Activity Frequency
| All N=27348 |
≥ 4x/wk n=8187 |
1–3x/wk n=10003 |
None n=9158 |
p- value* |
||
|---|---|---|---|---|---|---|
| Age, mean (SD) | 64.6(9.39) | 64.8(9.13) | 63.6(9.22) | 65.6(9.71) | <0.0001 | |
| Black, % | 40.4 | 36.1 | 40.5 | 44.2 | <0.0001 | |
| Female, % | 55.5 | 46.1 | 55.0 | 64.3 | <0.0001 | |
| Region, % | ||||||
| Belt | 34.7 | 34.9 | 34.5 | 34.7 | 0.3899 | |
| Buckle | 21.0 | 21.6 | 21.0 | 20.6 | ||
| Nonbelt | 44.3 | 43.5 | 44.5 | 44.7 | ||
| Urban Group, % | ||||||
| Urban | 78.1 | 75.1 | 78.7 | 80.1 | <0.0001 | |
| Mixed | 11.0 | 12.2 | 10.8 | 10.2 | ||
| Rural | 10.9 | 12.7 | 10.5 | 9.7 | ||
| Annual Income, % | ||||||
| Less than 20K | 17.1 | 15.2 | 14.2 | 22.1 | <0.0001 | |
| 20–34K | 23.9 | 23.2 | 23.1 | 25.4 | ||
| 35–74K | 30.5 | 31.3 | 32.6 | 27.3 | ||
| 75K and above | 16.5 | 18.2 | 19.2 | 12.1 | ||
| Refused | 12.0 | 12.1 | 10.9 | 13.1 | ||
| Highest Education, % | ||||||
| Less than HS | 11.6 | 11.0 | 9.5 | 14.6 | <0.0001 | |
| HS graduate | 25.7 | 25.5 | 23.4 | 28.3 | ||
| Some college | 26.9 | 25.9 | 27.1 | 27.5 | ||
| College Grad and above | 35.8 | 37.6 | 40.0 | 29.6 | ||
| BMI kg/m2, mean(SD) | 29.3(6.18) | 28.2(5.44) | 29.3(5.95) | 30.3(6.86) | <0.0001 | |
| Smoke, % | ||||||
| Current | 14.2 | 12.7 | 13.0 | 16.7 | <0.0001 | |
| Never | 45.8 | 44.4 | 48.4 | 44.2 | ||
| Past | 40.0 | 42.9 | 38.6 | 39.1 | ||
| Alcohol Use, % | ||||||
| Heavy | 4.1 | 5.2 | 3.7 | 3.6 | <0.0001 | |
| Moderate | 34.1 | 36.8 | 36.6 | 28.8 | ||
| None | 61.8 | 58.0 | 59.7 | 67.6 | ||
| Diabetes, % | 21.0 | 17.5 | 19.7 | 25.4 | <0.0001 | |
| Hypertension, % | 57.8 | 53.2 | 56.1 | 63.9 | <0.0001 | |
HS = high school, BMI = body mass index.
*
p-values based on ANOVA tests for mean differences and Chi-square tests for differences in proportions