Table 2. Prevalence of demographic and lifestyle characteristics according to physical activity level.
| Characteristic | Category | All Participants | Physical Activity Level (MET-h/wk) | |||||
| 0 | 0.1–3.74 | 3.75–7.4 | 7.5–14.9 | 15.0–22.4 | 22.5+ | |||
| Participants ( n ) | 654,827 | 50,555 | 112,661 | 60,132 | 167,931 | 118,255 | 145,293 | |
| Age (years) | <60 | 287,606 | 51% | 44% | 50% | 43% | 40% | 42% |
| 60–69.9 | 306,495 | 38% | 45% | 43% | 47% | 52% | 49% | |
| 70.0+ | 60,726 | 11% | 11% | 7% | 9% | 8% | 9% | |
| Gender | Men | 290,136 | 39% | 41% | 42% | 44% | 49% | 47% |
| Women | 364,691 | 61% | 59% | 58% | 56% | 51% | 53% | |
| Smoking status | Never | 272,272 | 40% | 44% | 42% | 43% | 41% | 42% |
| Former | 295,754 | 41% | 43% | 44% | 46% | 49% | 48% | |
| Current | 74,341 | 19% | 13% | 13% | 11% | 10% | 10% | |
| Co-morbidities | Heart disease | 60,864 | 9% | 9% | 9% | 9% | 11% | 9% |
| Cancer | 45,894 | 9% | 8% | 6% | 7% | 6% | 6% | |
| Alcohol intake | 0 g/d | 178,382 | 37% | 34% | 25% | 26% | 22% | 25% |
| >0 g/d | 476,445 | 63% | 66% | 75% | 74% | 78% | 75% | |
| Education | High school | 155,706 | 32% | 28% | 25% | 24% | 21% | 24% |
| Some college | 221,727 | 39% | 36% | 36% | 35% | 34% | 35% | |
| College graduate | 248,783 | 29% | 36% | 39% | 41% | 44% | 41% | |
| Marital status | Married | 469,531 | 78% | 79% | 73% | 77% | 74% | 76% |
| Not married | 145,753 | 22% | 21% | 27% | 23% | 26% | 24% | |
| BMI (kg/m2) | <25.0 | 280,934 | 37% | 38% | 38% | 42% | 45% | 50% |
| 25.0–29.9 | 254,704 | 36% | 39% | 39% | 40% | 40% | 38% | |
| 30+ | 119,189 | 26% | 23% | 23% | 18% | 15% | 12% | |
| Race | White | 621,432 | 96% | 96% | 95% | 97% | 96% | 97% |
| Black | 15,455 | 3% | 3% | 3% | 2% | 2% | 2% | |
| Other | 7,773 | 1% | 1% | 1% | 1% | 1% | 1% | |