Table 1

Weight characteristics of the children in relation to parental educational level and household income, by gender in the DNBC 1996–2010

nTotal meanMaternal educational level (%)Paternal educational level (%)Household income (%)
Characteristics<10 years10–12 years>12 years<10 years10–12 years>12 years<2020–<4040–<6060–<8080–100
Boys
 Mean birth weight,* kg (SD)43 3473.7 (0.5)3.6 (0.5)3.7 (0.5)3.7 (0.5)3.7 (0.5)3.7 (0.5)3.7 (0.5)3.7 (0.5)3.7 (0.5)3.7 (0.5)3.7 (0.5)3.7 (0.5)
 Mean 5 months BMI (SD)25 79017.0 (1.6)17.0 (1.7)17.0 (1.6)17.0 (1.6)17.0 (1.6)17.0 (1.7)17.0 (1.6)17.0 (1.7)17.0 (1.7)17.0 (1.7)16.9 (1.6)16.9 (1.6)
 Mean 12 months BMI (SD)23 88017.3 (1.6)17.3 (1.6)17.3 (1.6)17.2 (1.6)17.3 (1.6)17.3 (1.6)17.3 (1.6)17.3 (1.7)17.3 (1.6)17.3 (1.6)17.2 (1.6)17.3 (1.6)
 Mean 7-year BMI (SD)22 70315.7 (1.6)15.9 (1.8)15.8(1.6)15.6 (1.5)15.9 (1.8)15.8 (1.6)15.6 (1.5)15.8 (1.7)15.8 (1.7)15.7 (1.6)15.7 (1.6)15.6 (1.4)
 Overweight (%) age 7, IOTF†22 7038.715.59.46.712.69.06.510.610.08.98.55.8
Girls
 Mean birth weight,* kg (SD)41 4353.6 (0.5)3.5 (0.5)3.6 (0.5)3.6 (0.5)3.5 (0.5)3.6 (0.5)3.6 (0.5)3.6 (0.5)3.6 (0.5)3.6 (0.5)3.6 (0.5)3.6 (0.5)
 Mean 5 months BMI (SD)24 86716.4 (1.6)16.5 (1.7)16.5 (1.6)16.4 (1.6)16.5 (1.7)16.4 (1.6)16.4 (1.6)16.5 (1.6)16.5 (1.6)16.4 (1.6)16.4 (1.6)16.4 (1.6)
 Mean 12 months BMI (SD)23 26916.8 (1.6)16.9 (1.7)16.8 (1.6)17.0 (1.6)16.9 (1.6)16.8 (1.6)16.8 (1.6)16.8 (1.6)16.9 (1.6)16.8 (1.6)16.8 (1.6)16.8 (1.6)
 Mean 7-year BMI (SD)21 52415.6 (1.7)15.9 (2.0)15.7 (1.8)15.5 (1.6)15.9 (2.0)15.7 (1.8)15.5 (1.6)15.7 (1.8)15.7 (1.8)15.6 (1.6)15.57 (1.6)15.57 (1.6)
 Overweight (%) age 7, IOTF†21 52411.115.611.89.115.111.78.312.413.810.89.88.9
  • *Term births only.

  • †Cole et al.23

  • BMI, body mass index; DNBC, Danish National Birth Cohort; IOTF, International Obesity Taskforce Reference.