| |
Whole sample
|
Boys
|
Girls
|
P*
|
|---|
| |
(n = 737)
|
(n = 351)
|
(n = 386)
|
|---|
|
Age (years)
|
13.66 (1.48)
|
13.63 (1.55)
|
13.69 (1.42)
|
.644
|
|
Ethnicity % (n)
|
|
European
|
34.5 (254)
|
34.2 (120)
|
34.7 (134)
|
.893
|
|
Melanesian
|
60.2 (444)
|
60.1 (211)
|
60.4 (233)
|
-
|
|
Polynesian
|
5.3 (39)
|
5.7 (20)
|
4.9 (19)
|
-
|
|
SES % (n)
|
|
Higher
|
30.9 (228)
|
32.2 (113)
|
29.8 (115)
|
.056
|
|
Intermediate
|
24.8 (183)
|
27.9 (98)
|
22.0 (85)
|
-
|
|
Lower
|
44.2 (326)
|
39.9 (140)
|
48.2 (186)
|
-
|
|
Residence % (n)
|
|
Urban
|
27.7 (204)
|
30.8 (108)
|
24.9 (96)
|
.074
|
|
Rural
|
72.3 (533)
|
69.2 (243)
|
75.1 (290)
|
-
|
|
Height (cm)
|
158.42 (9.50)
|
159.67 (11.25)
|
157.28 (7.41)
|
.001
|
|
Weight (kg)
|
55.46 (14.60)
|
55.50 (15.37)
|
55.42 (13.89)
|
.938
|
|
BMI-SDS
|
0.792 (1.15)
|
0.78 (1.18)
|
0.80 (1.13)
|
.816
|
|
BMI centile
|
69.35 (27.97)
|
68.47 (28.03)
|
70.15 (27.94)
|
.415
|
|
Weight status % (n)
|
|
Underweight
|
5.2 (38)
|
4.3 (15)
|
6.0 (23)
|
.176
|
|
Lower normal weighta
|
20.4 (150)
|
23.1 (81)
|
17.9 (69)
|
-
|
|
Upper normal weighta
|
40.8 (301)
|
41.6 (146)
|
40.2 (155)
|
-
|
|
Overweight
|
21.2 (156)
|
18.2 (64)
|
23.8 (92)
|
-
|
|
Obese
|
12.5 (92)
|
12.8 (45)
|
12.2 (47)
|
-
|
- Mean +/− SD or % (n)
-
SES socioeconomic status, BMI-SDS body mass index standard deviation score
- *P values are for the association between each variable and gender
-
a‘Lower normal-weight’ and ‘upper normal-weight’ categories are subcategories of the normal-weight category
