Body Weight Assessment in Swiss Primary School Children: Trend Analysis Over 10 Years

Obesity Clinical Trial

Official title:

Body Weight Assessment in Swiss Primary School Children: Trend Analysis Over 10 Years

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT01572935
• Other study ID #: EK 2011-N-50
• Status: Completed
• Phase: N/A
• First received: February 8, 2012
• Last updated: September 18, 2012
• Start date: February 2012
• Est. completion date: September 2012

Study information

• Verified date: September 2012
• Source: Swiss Federal Institute of Technology
• Contact: n/a
• Is FDA regulated: No
• Health authority: Switzerland: Ethikkommission
• Study type: Observational

Clinical Trial Summary

Background: Recent evidence from several countries has emerged suggesting that the increase in the prevalence of childhood obesity has slowed down substantially, or even leveled off. Also in Switzerland this trend has been observed. In 2002, 20.3% and 19.1% of boys and girls, respectively, were overweight or obese in Switzerland. In 2007, the prevalence of overweight was significantly lower, with 11.3% and 9.9% of school-aged boys and girls, respectively, being overweight or obese. Further trend analyses are necessary to confirm that the stabilizing trend observed reflects a long-term change in the rates of childhood overweight and obesity.

Objective and Methods: The aim of the present study is to repeat the 2002 and 2007 national studies, in order to monitor the trend in the prevalence of overweight and obesity in 6-12 year old children in Switzerland during this 5 respectively 10 year time period. Height and weight will be measured and used to calculate body mass index (BMI). BMI references form the Centers for Disease Control and Prevention will be used to determine the prevalence of underweight (< 5th percentile), overweight (≥ 85th and < 95th percentile) and obesity (≥ 95th percentile). Waist and hip circumference will be measured. Moreover, skinfold thicknesses and bioelectrical impedance analysis will be performed to calculate body fat percentage.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 2979
• Est. completion date: September 2012
• Est. primary completion date: July 2012
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: Both
• Age group: 6 Years to 12 Years

Eligibility

Inclusion Criteria:

• age 6-12 years

• child is attending one of the selected classrooms

Exclusion Criteria:

• age below 6 or above 12 years

Study Design

Time Perspective: Cross-Sectional

Related Conditions & MeSH terms

• Body Weight
• Obesity
• Overweight

Locations

Country	Name	City	State
Switzerland	ETH Zurich	Zurich

Sponsors (1)

Lead Sponsor	Collaborator
Swiss Federal Institute of Technology

Country where clinical trial is conducted

Switzerland, 

References & Publications (3)

Aeberli I, Ammann RS, Knabenhans M, Molinari L, Zimmermann MB. Decrease in the prevalence of paediatric adiposity in Switzerland from 2002 to 2007. Public Health Nutr. 2010 Jun;13(6):806-11. doi: 10.1017/S1368980009991558. Epub 2009 Sep 22. — View Citation

Aeberli I, Henschen I, Molinari L, Zimmermann MB. Stabilization of the prevalence of childhood obesity in Switzerland. Swiss Med Wkly. 2010 Jul 15;140:w13046. doi: 10.4414/smw.2010.13046. — View Citation

Zimmermann MB, Gübeli C, Püntener C, Molinari L. Overweight and obesity in 6-12 year old children in Switzerland. Swiss Med Wkly. 2004 Sep 4;134(35-36):523-8. — View Citation

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Prevalence of overweight and obesity	Assessment of the prevalence of overweight and obesity in the study population using measurements of weight and height to calculate the body mass index. The 85th and 95th percentiles of the reference population published by the Centers for Disease Control and Prevention will be used as cut-off points.	up to 7 months	No
Secondary	Waist circumference	Assessment of waist circumference using non-strechable measuring tape.	up to 7 months	No