|
Variables
|
TV and zBMI (n = 259)
|
Sedentary time and zBMI (n = 140)
|
|---|
|
Age, years
|
12.9 (12.9, 13.0)
|
12.9 (12.9, 13.0)
|
|
Sex, %
|
|
Male
|
47.5 (41.4, 53.6)
|
50.0 (41.7, 58.3)
|
|
Female
|
52.5 (46.4, 58.4)
|
50.0 (41.7, 58.3)
|
|
Maternal education, %
|
|
Low
|
6.9 (4.4, 10.8)
|
5.0 (2.3, 10.2)
|
|
Medium
|
65.3 (59.2, 70.8)
|
62.8 (54.4, 70.5)
|
|
High
|
27.8 (22.7, 33.6)
|
32.1 (24.8, 40.4)
|
|
Pubertal status, %
|
|
Early puberty
|
19.3 (8.0, 4.6)
|
14.3 (35.1, 56.2)
|
|
Mid-pubertal
|
35.5 (30.0, 41.6)
|
41.4 (33.5, 50.0)
|
|
Late-pubertal
|
35.5 (30.0, 41.6)
|
35.0 (27.5, 43.4)
|
|
Post-pubertal
|
27.0 (21.9, 32.8)
|
22.1 (16.0, 30.0)
|
|
BMI
|
|
kg/m2
|
20.7 (20.2, 21.3)
|
20.3 (19.7, 21.0)
|
|
z-score
|
0.4 (0.3, 0.5)
|
0.3 (0.1, 0.5)
|
|
Overweight, %
|
18.9 (14.6, 24.2)
|
13.6 (8.8, 20.4)
|
|
Obese, %
|
9.2 (6.3, 13.5)
|
9.2 (5.4, 15.4)
|
|
Sedentary behaviour
|
|
TV viewing (hours/day)
|
3.2 (3.0, 3.4)
| |
|
Total sedentary time (hours/day)
| |
6.1 (6.0, 6.2)
|
|
Average sedentary bout (minutes/day)
| |
6.6 (6.5, 6.6)
|
|
MVPA (minutes/day)
| |
48.2 (35.0, 61.4)
|
|
Dietary intake
|
|
Discretionary foods (freq/day)
|
2.4 (2.2, 2.6)
|
2.4 (2.1, 2.7)
|
|
Sugar-sweetened beverages (freq/day)
|
2.1 (1.8, 2.3)
|
1.9 (1.6, 2.2)
|
|
Takeaway food (freq/week)
|
3.4 (3.1, 3.6)
|
3.2 (2.8, 3.6)
|
-
BMI body mass index, zBMI BMI z-score, TV television, MVPA moderate-to-vigorous physical activity; freq: frequency
- Footnote: Maternal education: low = some secondary education or less; medium = completing secondary school, an apprenticeship or technical certificate; high = university or tertiary qualification. Pubertal status self-assessed using the ‘Tanner Stages’ [25]. BMI z-score determined using the age- and sex-specific CDC 2000 reference data [18]. Overweight and obesity determined using the International Obesity Task Force (IOTF) criteria [19]
