Table 1.
Summary statistics at baseline for participants aged 18–84 in the full and restricted NHIS cohorts surveyed 1997–2014 with mortality follow- up through 2015
| Full cohort | Never smokers, no conditions and 3 year survivors | |
|---|---|---|
| # of participants | 416 420 | 184 033 |
| # of deaths | 45 344 | 11 297 |
| Cardiovascular | 7737 | 1746 |
| Chronic lower respiratory | 2489 | 196 |
| Cancer | 11 094 | 2456 |
| Survival time in years (median±IQR) | 7.0±10.0 | 9.0±9.0 |
| Aerobic physical activity | ||
| None | 36.7% | 33.7% |
| Moderate only | 22.8% | 21.8% |
| Vigorous only | 8.9% | 10.0% |
| Moderate and vigorous | 31.6% | 34.5% |
| No muscle- strengthening activity | 76.0% | 73.4% |
| MPA in min/week (mean±SD) | 106.9±200.7 | 104.5±192.0 |
| VPA in min/week (mean±SD) | 81.6±177.3 | 87.1±176.7 |
| MSE in times/week (mean±SD) | 0.9±2.3 | 1.0±2.3 |
| Age in years (mean±SD) | 46.8±17.8 | 43.1±17.1 |
| Female | 55.2% | 60.4% |
| Race-ethnicity | ||
| Black non- Hispanic | 14.6% | 15.6% |
| Hispanic | 17.2% | 21.3% |
| Other/unknown | 5.4% | 6.5% |
| White non- Hispanic | 62.9% | 56.7% |
| Household income | ||
| $75 000 and over | 27.9% | 31.9% |
| $50 000–$75 000 | 17.9% | 18.8% |
| $35 000–$50 000 | 14.7% | 14.5% |
| $0–$35 000 | 39.5% | 34.8% |
| Education | ||
| High-school graduate | 27.1% | 23.9% |
| Some college | 29.6% | 29.3% |
| College graduate | 16.5% | 20.1% |
| Post-college grad | 8.8% | 10.9% |
| <High-school grad | 18.0% | 15.8% |
| Marital status | ||
| Divorced | 15.0% | 11.2% |
| Separated | 3.6% | 3.2% |
| Never married | 25.8% | 29.1% |
| Widowed | 9.3% | 7.3% |
| Married | 46.2% | 49.2% |
| BMI in kg/m2 (mean±SD) | 27.4±6.0 | 27.1±5.8 |
| <20 | 6.0% | 6.1% |
| 20–25 | 32.8% | 34.5% |
| 25–30 | 34.8% | 34.7% |
| 30–35 | 16.4% | 15.6% |
| >35 | 10.0% | 9.1% |
| Smoking status | ||
| Current | 21.4% | 0.0% |
| Former | 22.0% | 0.0% |
| Never | 56.6% | 100.0% |
| No chronic conditions | 91.3% | 100.0% |
| 3-year survivors | 82.9% | 100.0% |
BMI, body mass index; MPA, moderate- intensity physical activity; MSE, muscle-strengthening exercise; VPA, vigorous-intensity physical activity.