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Title: Socio-demographic and behavioural risk factors associated with the high prevalence of overweight and obesity in Portuguese children
Authors: Bingham, Daniel D.
Varela Silva, Maria Ines
Ferrao, Maria M.
Gama, Augusta
Mourao, Maria I.
Nogueira, Helena
Marques, Vitor R.
Padez, Cristina
Issue Date: 2013
Publisher: © Wiley Periodicals, Inc.
Citation: BINGHAM, D.D. ... et al, 2013. Socio-demographic and behavioural risk factors associated with the high prevalence of overweight and obesity in Portuguese children. American Journal of Human Biology, 25 (6), pp. 733–742.
Abstract: Objectives: Childhood obesity is a public health concern in Portugal. Socio-demographic and behavioral factors are highly associated with obesity but are not clearly understood. This article aims to update the prevalence of overweight and obesity in Portuguese children and to explore the influence and risks of socio-demographic factors and behavioral factors. Methods: A cross-sectional study of Portuguese children aged 3–10 years from all 18 mainland districts took place between March 2009 and January 2010. The sample was composed by 17,136 children, 3–10 years of age (8,455 boys; 8,681 girls). Height, weight, and other anthropometric measurements were obtained by trained technicians. Body mass index (BMI) was calculated along with other anthropometric variables. Data analyses took place between April and September 2012. The overweight/obesity classification was established by age-and sex-specific BMI cut-off points as defined by the International obesity task force (IOTF). Parents completed questionnaires about socio-demographic and behavioral characteristics of the family. Results: Almost 28% of the Portuguese children were overweight or obese (19.7% overweight; 8.2% obese). Prevalence was greater in girls than in boys. Logistic regression models found that the odds of childhood obesity were significantly affected by biological, socio-demographic, and behavioral factors. Conclusions: The protective factors against childhood overweight/obesity in this sample of Portuguese children are: (i) being male; (ii) having been breastfeed; (iii) having been born from mothers who did not smoke during pregnancy; (iv) engaging in little sedentary behaviors (TV, PC, and playing electronic games); (iv) performing at least 1 h of moderate physical activity every day; and (v) having parents with higher educational levels who also have their BMI within the healthy ranges.
Description: This article was submitted for publication in the American Journal of Human Biology [© Wiley Periodicals, Inc.] and the definitive version is available at: http://dx.doi.org/10.1002/ajhb.22440
Sponsor: Fundação para a Ciência e Tecnologia. [Grant Number: FCOMP-01–0124-FEDER-007483]
Version: Submitted for publication
DOI: 10.1002/ajhb.22440
URI: https://dspace.lboro.ac.uk/2134/14009
Publisher Link: http://dx.doi.org/10.1002/ajhb.22440
ISSN: 1042-0533
Appears in Collections:Published Articles (Sport, Exercise and Health Sciences)

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