TABLE 1.
Characteristics of Participants and Their Media Use (N = 91)
| Female gender | 45 (49.5%) |
| Age, y, mean (range) | 14.0 (13–15) |
| Race (%) | |
| White | 62.6 |
| Black | 13.2 |
| Other | 17.9 |
| Multiracial | 6.6 |
| Hispanic | 16.5 |
| BMI, mean (range) | 23.7 (16.6–43.1) |
| Weekly number of EMA signals completed, mean (range) | 28.9 (7–49) |
| Mean duration of physical activity in minutes/48 ha (SD) | 87.5 (123.6) |
| Mean durations of media use in min/48 ha (SD) [lower quartile, upper quartile], number of cases >1.5× IQR | |
| TV viewing | 402.9 (260.4) [210.0, 555.0], 1 |
| Video game play | 95.1 (148.2) [0.0, 135.0], 9 |
| Computer use | 140.0 (188.0) [0.0, 195.00], 6 |
| Primary attention, mean % EMA reports (SD), [lower quartile, upper quartile] | |
| TV | 25.5 (13.9) [14.3, 33.3] |
| Video games | 6.9 (11.0) [0.0, 10.5] |
| Computer | 9.2 (9.4) [0.0, 6.3] |
| Secondary/tertiary attention, mean % EMA reports (SD), [lower quartile, upper quartile] | |
| TV | 8.7 (10.7) [0.0, 10.8] |
| Video games | 1.1 (2.4) [0.0, 2.1] |
| Computer | 3.1 (5.6) [0.0, 3.7] |
IQR, interquartile range.
a
Durations are over the 2 (weekday and Saturday) TUD days.