This study will repeat previous studies done in 2002, 2007 2012 and 2017/18, in order to monitor the trend in the prevalence of overweight and obesity in 6-12 year old children in Switzerland over the entire period. Furthermore, additional risk factors will be assessed for the later development of NCD using a questionnaire comparable to the one used in 2017/18.
A total of ca. 2500 children will be recruited throughout Switzerland and their height, weight, waist circumference as well as percentage body fat will be measured. In addition, children will be asked to complete a questionnaire on some aspects of their diet, physical activity, health and socioeconomic background. Data will be compared to previous surveys conducted since 2002 to monitor trends in overweight and obesity prevalence in Switzerland. The results from the questionnaire will be used to investigate risk factors for obesity and the later development of NCDs.
Study Type
OBSERVATIONAL
Enrollment
1,245
ETH Zurich
Zurich, Switzerland
Prevalence of overweight and obesity
Based on weight and height measurements BMI-zscores will be calculated for the classification into the different weight status groups.
Time frame: baseline
waist circumference
waist circumference in cm
Time frame: baseline
percent body fat
percent body fat as calculated from 4 skinfold thickness measures
Time frame: baseline
physical activity
Assessed using a questionnaire as hours per week
Time frame: baseline
Nutrition
Assessed using a food frequency questionnaire (never to several times a week)
Time frame: baseline
General health
Assessed using a questionnaire
Time frame: baseline
Parental education
Assessed using a questionnaire on a 5 item scale ranging from obligatory schooling (lowest rating) to university degree (highest rating)
Time frame: baseline
Country of birth
Assessed in a questionnaire
Time frame: baseline
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