Cox Proportional Hazards Models for Risk of All-Cause Mortality for All Adults Ages 21 and Older by Adherence to 0, 1, 2, 3, or 4 Healthy Habits Stratified by Body Mass Index*
| Number of Healthy Habits | Hazard Ratio | 95% Confidence Interval |
|---|---|---|
| BMI ≥18.5 to <25 | ||
| 0 | 2.18 | 1.25–3.81 |
| 1 | 2.70 | 1.90–3.83 |
| 2 | 2.11 | 1.57–2.83 |
| 3 | 1.39 | 1.07–1.82 |
| 4 | Reference group | — |
| BMI ≥25 to <30 | ||
| 0 | 3.72 | 1.53–9.07 |
| 1 | 2.45 | 1.65–3.67 |
| 2 | 1.63 | 1.29–2.05 |
| 3 | 1.16 | 0.89–1.52 |
| 4 | 1.08 | 0.81–1.46 |
| BMI ≥30 | ||
| 0 | 6.69 | 3.67–12.2 |
| 1 | 3.26 | 2.03–5.24 |
| 2 | 1.76 | 1.34–2.30 |
| 3 | 1.65 | 1.12–2.42 |
| 4 | 1.05 | 0.66–1.67 |
↵* Sample size = 11,761 unweighted (133,700,723 weighted). Adjusted for age, sex, race, education, and marital status. Healthy habits include consumption of ≥5 fruits or vegetable/day, regular exercise >12 times/month, moderate alcohol consumption (up to 1 drink/day for women, up to 2/day for men), and not smoking.
BMI, body mass index.