Table 4.
Combined effects of maintenance and changes in both television viewing and MVPA between Time 1 and Time 2, the NIH-AARP Diet and Health Study
| Television viewing | |||||
|---|---|---|---|---|---|
| MVPA | Maintain high (≥3 h/day) | Increased (<3 to ≥3 h/day) | Reduced (≥3 to <3 h/day) | Maintain low (<3 h/day) | |
| Maintain low (<1 h/wk) | No. Deaths Hazard ratio (CI) | 1700 1.0 (referent) | 251 1.03 (0.90, 1.17) | 330 0.91 (0.81, 1.02) | 334 0.80 (0.72, 0.90) |
| Reduced (≥1 to <1 h/wk) | No. Deaths Hazard ratio (CI) | 2257 0.91 (0.85, 0.97) | 428 1.11 (1.0, 1.24) | 502 0.79 (0.71, 0.87) | 634 0.83 (0.76, 0.91) |
| Increased (<1 to ≥1 h/wk) | No. Deaths Hazard ratio (CI) | 1684 0.77 (0.72, 0.82) | 283 0.69 (0.61, 0.78) | 400 0.71 (0.63, 0.79) | 521 0.66 (0.60, 0.73) |
| Maintain high ( ≥1 h/wk) | No. Deaths Hazard ratio (CI) | 5590 0.72 (0.68, 0.76) | 1223 0.75 (0.69, 0.81) | 1580 0.62 (0.58, 0.67) | 2387 0.60 (0.56, 0.64) |
Time 1 (1995–1996), Time 2 (2004–2006). MVPA (Moderate-to-vigorous physical activity) Fully adjusted model: age (yrs), sex (male or female), race (white, black, other, or missing), education (<12 yrs, high school graduate, some college, college graduate, or missing), smoking history (never; quit, <20 cigarettes/d; quit, >20 cigarettes/d; current, <20 cigarettes/d; current, .20 cigarettes/d; or unknown), history of heart disease (yes/no), depression (yes/no, missing), other chronic conditions (yes/no), health status (fair, good, very good or excellent), and change in BMI category from Time 1 to Time 2 (<25, 25– < 30, >30, or missing)