Table 1

 Prevalence of overweight and obesity according to adult equivalent thresholds at aged 5 and 14 among participants in the Mater-University Study of Pregnancy and its Outcomes (n = 2875)

Number (%) [% from 1995 Australian National Nutritional Survey for similar age category]*
Age 5Age 14
Females (n = 1377)Males (n = 1498)Females (n = 1377)Males (n = 1498)
*Percentage in each category for Australian children aged 4–6 years (in the age 5 cells) and aged 12–15 years (in the age 14 cell) from the 1995 Australian National Nutritional Survey.23
*At age 5:
Normal weight BMI <17.15 kg/m2 for females and <17.42 kg/m2 for males.
Overweight BMI ⩾17.15 kg/m2 and <19.17 kg/m2 for females and ⩾17.42 kg/m2 and <19.30 kg/m2 for males.
Obese BMI ⩾19.17 kg/m2 for females and ⩾19.30 kg/m2 for males.
At age 14:
Normal weight BMI <23.34 kg/m2 for females and <22.62 kg/m2 for males.
Overweight BMI ⩾23.34 kg/m2 and <28.57 kg/m2 for females and ⩾22.62 kg/m2 and <27.63 kg/m2 for males.
Obese BMI ⩾28.57 kg/m2 for females and ⩾27.63 kg/m2 for males.
For both ages these thresholds are based on work by Cole et al20 and are the childhood equivalents of the adult thresholds of 25 kg/m2 and 30 kg/m2 used to define overweight and obesity in adulthood.
Normal weight*1112 (80.8)1265 (84.4)1059 (76.8)1187 (79.2)
Overweight*205 (14.9) [16.5]194 (13.0) [10.4]319 (23.2) [14.5]246 (16.4) [20.0]
Obese*60 (4.4) [6.1]39 (2.6) [3.0]0 [4.4]65 (4.3) [6.1]
Either overweight or obese265 (19.3) [22.6]233 (15.6) [13.4]319 (23.2) [18.9]319 (20.7) [26.1]