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Table 1 Participant characteristics (n = 124, 52% girls)

From: Relative validity of a web-based food frequency questionnaire for Danish adolescents

  All Girls Boys
Age, years (mean, SD) 13.2 (0.7) 13.3 (0.6) 13.2 (0.7)
Height, cm (mean, SD) 165.9 (8.3) 164.7 (7.9) 167.4 (8.5)
BMIa (kg/m2) (mean, SD) 19.1 (7.9) 19.2 (7.9) 19.1 (8.3)
Overweighta (%) 13.7 15 12
Obesea (%) 13.7 12 15
Born to GDM mothersb (%) 62 57 68
Parental educational level (%)
 High level of education 21 26 15
 Medium level of education 32.5 29 36
 Skilled workers 32.5 30 36
 Student 0.8 1.5 0
 Unskilled 12 14 11
 Unemployed 0.8 0 1.8
  1. BMI body mass index = weight (kg)/height (m)2 GDM gestational diabetes mellitus
  2. aClassification by Cole et al. [30]
  3. bAdolescents born to mothers with registered gestational diabetes