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Overweight and obesity prevalence in children based on 6- or 12-month IOTF cut-points: does interval size matter?
- Source :
- International journal of obesity (2005). 30(4)
- Publication Year :
- 2006
-
Abstract
- The International Obesity Taskforce (IOTF) recommends using age- and gender-specific body mass index (BMI) cut-points for defining the prevalence of overweight and obesity in children. These are given in both 6- and 12-month age intervals. Since the BMI-for-age curves are nonlinear, a degree of bias will be introduced when age intervals are wide. We aimed to quantify this bias in prevalence estimates in 2178 Australian children aged 4-12 years using 12- versus 6-month age intervals. Using the 12-month interval, the prevalence of overweight and obesity was underestimated by 1.4% compared to the 6-month interval estimates; however, this was age-dependent. It overestimated prevalence for 4-year olds, but underestimated it for older ages by up to 2.6%. Overweight prevalence was generally affected more than obesity prevalence. The use of different age intervals for IOTF cut-points introduces a small but systematic bias in prevalence estimates of overweight and obesity.
- Subjects :
- Gerontology
Male
medicine.medical_specialty
Victoria
Endocrinology, Diabetes and Metabolism
Medicine (miscellaneous)
Overweight
Body weight
Body Mass Index
Sex Factors
Bias
Reference Values
Epidemiology
medicine
Prevalence
Humans
Obesity
Child
Nutrition and Dietetics
business.industry
Age Factors
Nutritional status
medicine.disease
Cross-Sectional Studies
El Niño
Child, Preschool
Female
medicine.symptom
business
Body mass index
Demography
Subjects
Details
- ISSN :
- 03070565
- Volume :
- 30
- Issue :
- 4
- Database :
- OpenAIRE
- Journal :
- International journal of obesity (2005)
- Accession number :
- edsair.doi.dedup.....15cfc03d46fe6975e71e81dd178bdf89