From: Screen time and problem behaviors in children: exploring the mediating role of sleep duration
Variables | Value |
---|---|
Age, years (n = 11,875) | 9.91 (.62) |
Sex (n = 11,869) | |
 Female | 5681 |
 Male | 6188 |
 Parental incomea (n = 10,857): M (SD) | 7.22 (2.42) |
 Parental educationb (n = 11,858): M (SD) | 17.06 (2.67) |
Ethnicity (n = 11,755) | |
 White | 6176 |
 African American | 1779 |
 Hispanic | 2047 |
 Asian | 255 |
 Multiracial | 1498 |
 Body mass indexc (n = 11,832): M (SD) | 18.80 (4.17) |
 Physical activity, active days/week (n = 11,844): M (SD) | 3.49 (2.32) |
Screen time types, hours/day: M (SD) | |
 Television/movies (n = 11,841) | 1.26 (1.04) |
 Videos (n = 11,841) | .98 (1.13) |
 Video games (n = 11,838) | 1.01 (1.10) |
 Social media (n = 11,769) | .54 (1.15) |
  Text | .22 (.54) |
  Social networking sites | .12 (.42) |
  Video chat | .19 (.49) |
 Mature-rated video games (n = 11,850) | .38 (.64) |
 R-rated movies (n = 11,850) | .56 (.87) |
Problem behaviors (n = 11,864): M (SD) | |
 Anxious/depressed (range 0–26) | 2.52 (3.01) |
 Withdrawn/depressed (range 0–15) | 1.03 (1.71) |
 Somatic complaints (range 0–16) | 1.49 (1.95) |
 Social problems (range 0–18) | 1.62 (2.27) |
 Thought problems (range 0–18) | 1.62 (2.19) |
 Attention problems (range 0–20) | 2.98 (3.49) |
 Rule-breaking behavior (range 0–20) | 1.19 (1.86) |
 Aggressive behavior (range 0–36) | 3.26 (4.35) |
 Sleep duration, hours (n = 11,869): M (SD) | 9.00 (1.11) |