Note. FEV1 = Forced Expiratory Volume in one second, expressed as percentage of the predicted value. Normal values of FEV1 range between 80% and 120%; BMI = Body Mass Index. Ranges of BMI are: Underweight BMI < 18.5 kg/m2; Healthy BMI: 18.5 – 24.9 kg/m2; Overweight BMI: 25.0 – 29.9 kg/m2; Obese BMI ≥ 30 kg/m2.
1Education level, “Low”: Primary school or lower vocational secondary education, “Middle”: intermediate general secondary education or intermediate vocational education, and “High”: higher general secondary education, higher vocational education, or university education. High school (N=10 adolescents).
ᶲ Question not asked in adolescents