Table 1 Characteristics of screen time in Chinese boys and girls
From: Correlates of screen time among 8–19-year-old students in China
Variables | Boys (n = 510) | Girls (n = 553) | P valuea |
|---|---|---|---|
Continuous variable, mean (SD) | |||
Age, years | 14.79(2.52) | 15.05(2.49) | > 0.05 |
Screen time, hours/week | |||
Weekdays | 1.86(4.85) | 1.33(2.49) | < 0.05 |
Weekends | 7.12(8.23) | 5.86(5.32) | < 0.005 |
TV viewing | |||
Weekdays | 0.52(1.28) | 0.39(0.90) | > 0.05 |
Weekends | 2.11(3.02) | 1.91(2.25) | > 0.05 |
Phone/tablet use | |||
Weekdays | 0.78(2.34) | 0.62(1.67) | > 0.05 |
Weekends | 3.01(4.54) | 2.78(3.61) | > 0.05 |
Computer use | |||
Leisure | |||
Weekdays | 0.28(1.32) | 0.14(0.67) | < 0.05 |
Weekends | 1.73(3.11) | 0.87(2.17) | < 0.001 |
Study | |||
Weekdays | 0.29(2.76) | 0.18(0.73) | > 0.05 |
Weekends | 0.27(0.86) | 0.30(0.64) | > 0.05 |
Categorical variables, /n (%) | |||
Screen time ≥ 2 h/day | 75(14.7) | 49(8.9) | < 0.005 |
Grade | |||
Elementary school | 96(18.8) | 93(16.8) | > 0.05 |
Junior school | 204(40.0) | 201(36.3) | |
Senior school | 210(41.2) | 259(46.8) | |
Media accessibility | |||
None screen | 33(6.5) | 28(5.1) | > 0.05 |
One screens | 125(24.5) | 147(26.6) | |
Two screens | 239(46.9) | 285(51.5) | |
Three screens | 113(22.2) | 93(16.8) | |
Presence of parents/others (P) | |||
Strongly disagree | 132(25.9) | 130(23.5) | > 0.05 |
Disagree | 117(22.9) | 122(22.1) | |
Agree | 190(37.3) | 210(38.0) | |
Strongly agree | 71(13.9) | 91(16.5) | |
TV in bedroom | 83(16.3) | 87(15.7) | > 0.05 |
Computer | 132(25.9) | 148(26.8) | > 0.05 |
Phone/tablet | 373(73.1) | 428(77.4) | > 0.05 |
Presence of P while watching TV | |||
Strongly disagree | 111(21.8) | 86(15.6) | < 0.05 |
Disagree | 123(24.1) | 125(22.6) | |
Agree | 156(30.6) | 192(34.7) | |
Strongly agree | 120(23.5) | 150(27.1) | |
Presence of P while PC use | |||
Strongly disagree | 178(34.9) | 201(36.3) | > 0.05 |
Disagree | 179(35.1) | 183(33.1) | |
Agree | 87(17.1) | 109(19.7) | |
Strongly agree | 66(12.9) | 60(10.8) | |