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Table 1 Age, screen time and anthropometric characteristics of the sample (n = 1278; 630 boys, 648 girls).

From: Stability of television viewing and electronic game/computer use in a prospective cohort study of Australian children: relationship with body mass index

 

Baseline

Follow-up

Characteristic

Total sample

Males

Females

Total sample

Males

Females

Age (yrs) [m (SD)]

7.6 (1.2)

7.7 (1.2)

7.5 (1.2)

10.7 (1.2)

10.8 (1.2)

10.7 (1.2)

TV viewing (hrs/wk) [m (SD)]

14.0 (7.6)

14.4 (7.8)

13.7 (7.5)

15.2 (7.1)

15.2 (7.3)

15.2 (6.8)

Games/computer (hrs/wk) [m (SD)]

3.9 (4.1)

4.9 (4.5)

3.0 (3.3)

8.5 (6.9)

10.6 (7.4)

6.3 (5.6)

Total screen time (hrs/wk) [m (SD)]

18.0 (9.2)

19.3 (9.6)

16.7 (8.6)

23.7 (10.7)

25.8 (11.5)

21.6 (9.3)

Meet guidelines [n (%)]*

509 (40)

220 (35)

289 (45)

226 (18)

73 (12)

153 (24)

BMI z-score [m (SD)]

0.4 (0.9)

0.5 (0.8)

0.4 (0.9)

0.4 (0.9)

0.4 (0.9)

0.3 (0.9)

BMI category [n (%)]:

      

   Not overweight

959 (81)

478 (82)

481 (79)

953 (76)

483 (78)

470 (74)

   Overweight

178 (15)

83 (14)

95 (16)

246 (20)

112 (18)

134 (21)

   Obese

51 (4)

22 (4)

29 (5)

52 (4)

24 (4)

28 (4)

  1. *Australian Physical Activity Recommendations for children indicate no more than 2 hrs per day should be spent engaged in electronic media use [5].