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Table 1 Demographics and weight-related characteristics of children and parents of the KOALA cohort around age 5 (N = 1915)

From: Parental perception of child’s weight status and subsequent BMIz change: the KOALA birth cohort study

   Mean ± sd Prevalence
Child Gender   Male: 51%
    Female: 49%
  Age 5.01 ± 0.53  
  BMI z-score −0.27 ± 0.99  
  Weight status   Underweight: 9%
    Normal weight: 83%
    Overweight + obesity: 9%
Mother Age at birth of child 32.21 ± 3.78  
  Country of birth   Netherlands: 97%
    Other: 3%
  Educational level   High: 54%
    Medium: 38%
    Low: 8%
  Employment (hours per week) 17.87 ± 10.93  
  Alternative lifestyle   18%
  BMI 23.94 ± 3.79  
  Weight status   Underweight: 2%
    Normal weight: 67%
    Overweight + obesity: 32%
Father Country of birth   Netherlands: 96%
    Other: 4%
  Educational level   High: 53%
    Medium: 34%
    Low: 13%
  Employment (hours per week) 37.89 ± 9.94  
  BMI 25.07 ± 3.09  
  Weight status   Underweight: 1%
    Normal weight: 53%
    Overweight + obesity: 46%