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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

From: Impact of changes in television viewing time and physical activity on longevity: a prospective cohort 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)

  1. 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)