Table 2 Cross-sectional analysis of differences in screen time across BMI categories.
Activity | BMI category | Total sample | Males | Females | |||
|---|---|---|---|---|---|---|---|
m (SD) or % | β or OR (95% CI)† | m (SD) or % | β or OR (95% CI)† | m (SD) or % | β or OR (95% CI)† | ||
Baseline | |||||||
TV viewing (hrs/wk) | Non-overweight | 13.5 (7.4) | - | 13.9 (7.6) | - | 13.1 (7.1) | - |
Overweight | 15.6 (8.5) | 1.9 (0.7, 3.1) | 16.4 (8.5) | 2.0 (0.2, 3.9) | 15.0 (8.5) | 1.9 (0.3, 3.5) | |
Obese | 16.7 (7.8) | 3.4 (1.3, 5.5) | 15.0 (8.1) | 1.5 (-1.9, 4.9) | 18.0 (7.4) | 5.0 (2.2, 7.7) | |
Games/computer (hrs/wk) | Non-overweight | 3.9 (4.1) | - | 4.9 (4.6) | - | 2.9 (3.2) | - |
Overweight | 3.5 (3.8) | -0.3 (-0.9, 0.3) | 4.3 (4.2) | -0.6 (-1.6, 0.5) | 2.9 (3.3) | 0.0 (-0.7, 0.8) | |
Obese | 5.4 (4.6) | 1.5 (0.4, 2.7) | 6.3 (5.8) | 1.4 (-0.6, 3.3) | 4.7 (3.5) | 1.9 (0.6, 3.1) | |
Total screen time (hrs/wk) | Non-overweight | 17.4 (8.9) | - | 18.9 (9.5) | - | 16.0 (8.1) | - |
Overweight | 19.2 (10.2) | 1.6 (0.2, 3.1) | 20.6 (10.7) | 1.5 (-0.8, 3.7) | 17.9 (9.7) | 2.0 (0.1, 3.8) | |
Obese | 22.1 (8.9) | 4.9 (2.4, 7.5) | 21.3 (9.4) | 2.9 (-1.3, 7.0) | 22.7 (8.6) | 6.8 (3.7, 10.0) | |
Meet guidelines* | Non-overweight | 42.4% | - | 37.6% | - | 47.1% | - |
Overweight | 34.5% | 0.7 (0.5, 1.0) | 27.7% | 0.7 (0.4, 1.1) | 40.4% | 0.8 (0.5, 1.2) | |
Obese | 23.5% | 0.4 (0.2, 0.8) | 27.3% | 0.5 (0.2, 1.5) | 20.7% | 0.3 (0.1, 0.7) | |
Follow-up | |||||||
TV viewing (hrs/wk) | Non-overweight | 14.6 (6.7) | - | 14.6 (6.8) | - | 14.6 (6.6) | - |
Overweight | 17.0 (7.9) | 2.4 (1.4, 3.3) | 17.2 (8.9) | 2.6 (1.1, 4.1) | 16.8 (7.1) | 2.2 (0.9, 3.4) | |
Obese | 17.1 (6.4) | 2.6 (0.6, 4.5) | 15.8 (6.3) | 1.2 (-1.8, 4.2) | 18.2 (6.4) | 3.8 (1.3, 6.3) | |
Games/computer (hrs/wk) | Non-overweight | 8.2 (6.5) | - | 10.0 (6.9) | - | 6.3 (5.5) | - |
Overweight | 8.8 (7.4) | 0.6 (-0.3,1.5) | 11.7 (8.3) | 1.6 (0.1, 3.1) | 6.4 (5.6) | 0.2 (-0.9, 1.2) | |
Obese | 10.7 (7.6) | 2.7 (0.8, 4.5) | 14.1 (6.9) | 4.0 (1.1, 7.0) | 7.9 (7.1) | 1.8 (-0.3, 3.9) | |
Total screen time (hrs/wk) | Non-overweight | 22.8 (10.0) | - | 24.6 (10.5) | - | 20.9 (9.1) | - |
Overweight | 25.8 (11.9) | 3.0 (1.5, 4.4) | 28.9 (13.7) | 4.2 (1.9, 6.5) | 23.2 (9.3) | 2.3 (0.6, 4.1) | |
Obese | 27.8 (10.6) | 5.2 (2.4, 8.1) | 29.9 (9.5) | 5.2 (0.7, 9.8) | 26.0 (11.3) | 5.6 (2.1, 9.1) | |
Meet guidelines* | Non-overweight | 19.0% | - | 12.7% | - | 25.5% | - |
Overweight | 14.2% | 0.7 (0.5, 1.1) | 9.8% | 0.8 (0.4, 1.5) | 17.9% | 0.6 (0.4, 1.0) | |
Obese | 11.5% | 0.5 (0.2, 1.3) | 0% | †† | 21.4% | 0.7 (0.3, 1.9) | |