| Physical Activity |  |  |  | |||
---|---|---|---|---|---|---|---|
 | Inactive | Active |  |  |  | ||
 | Mean | SD | Mean | SD | t-value (df) | p-value | Effect size a |
Times per week attending sports clubs | 1.1 | 1.4 | 2.5 | 1.8 | 18.26 (1811.5) | < 0.001 | 0.9 |
Hours per day watching television | 2.7 | 1.5 | 2.6 | 1.4 | 2.70 (1833.4) | < 0.01 | 0.1 |
Hours per day watching video/DVDs | 1.6 | 1.4 | 1.6 | 1.3 | - | n.s | - |
Hours per day playing video games (e.g. X-Box, Play-station) | 1.4 | 1.6 | 1.6 | 1.6 | 2.81 (1847.0) | < 0.01 | 0.1 |
Hours per day spending in front of the computer | 2.1 | 1.7 | 2.0 | 1.6 | - | n.s. | - |
Hours per day doing homework | 1.7 | 1.3 | 1.7 | 1.3 | - | n.s | - |
Hours per day talking on the phone | 1.6 | 1.5 | 1.4 | 1.5 | 3.18 (1831.38) | < 0.01 | 0.1 |
Hours per day listening to music | 2.4 | 1.7 | 2.5 | 1.7 | - | n.s | - |
Hours per day traveling in the car/bus/motorbike | 1.5 | 1.4 | 1.5 | 1.5 | - | n.s | - |
Hours per day spent on screen-based sedentary activities | 7.8 | 4.4 | 7.7 | 4.4 | - | n.s | - |
Hours per day spent on non-screen based sedentary activities | 5.5 | 3.6 | 5.3 | 3.6 | - | n.s | - |