TABLE 1

Characteristics of Participants and Their Media Use (N = 91)

Female gender45 (49.5%)
Age, y, mean (range)14.0 (13–15)
Race (%)
 White62.6
 Black13.2
 Other17.9
 Multiracial6.6
 Hispanic16.5
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 viewing402.9 (260.4) [210.0, 555.0], 1
 Video game play95.1 (148.2) [0.0, 135.0], 9
 Computer use140.0 (188.0) [0.0, 195.00], 6
Primary attention, mean % EMA reports (SD), [lower quartile, upper quartile]
 TV25.5 (13.9) [14.3, 33.3]
 Video games6.9 (11.0) [0.0, 10.5]
 Computer9.2 (9.4) [0.0, 6.3]
Secondary/tertiary attention, mean % EMA reports (SD), [lower quartile, upper quartile]
 TV8.7 (10.7) [0.0, 10.8]
 Video games1.1 (2.4) [0.0, 2.1]
 Computer3.1 (5.6) [0.0, 3.7]
  • IQR, interquartile range.

  • a Durations are over the 2 (weekday and Saturday) TUD days.