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Our study aimed to describe the association between food patterns and gender, parental education, physical activity, sleeping and obesity in 1976 children aged 5-10 years old. Dietary intake was measured by a semi quantitative food frequency questionnaire; body mass index was calculated and categorized according to the IOTF classification. Factor analysis(More)
BACKGROUND The accuracy of self-reported weight and height to measure obesity has been evaluated, but no information is available on the possible error effects of self-reporting when estimating the association between body mass index (BMI) categories and the occurrence of acute myocardial infarction (AMI). We aim to evaluate if two different sources of(More)
In this paper we propose a speech event detector that segments speech signals in terms of four broad acoustic-phonetic classes of events. Frame-based detection was carried out using support vector machines (SVM). Non-negative matrix deconvolution (NMD) was used in order to switch from a frame-based detection to a segment-based detection. Results obtained(More)
OBJECTIVE To summarize the recommendations on folate intake and folic acid supplementation and fortification in the periconceptional period, aimed at prevention of neural tube defects (NTD), provided by official health organizations in different countries worldwide and WHO. DESIGN Information on recommendations for folate and folic acid intake in the(More)
BACKGROUND There is scarce evidence regarding the association between diet and metabolic syndrome (MetS) in Portuguese population. We aim to evaluate the association between a posteriori dietary patterns (DPs) and MetS and its features. METHODS Using random digit dialing, a sample of 2167 adults was selected between 1999 and 2003, in Porto. During a(More)
OBJECTIVE To assess the association between sugar-sweetened beverage (SSB) consumption and overweight in children from a Mediterranean country. DESIGN The children's dietary intake was measured using a semi-quantitative FFQ completed by the parents. Overall, 2512 questionnaires were returned and 837 children were removed, leaving a final sample of 1675(More)
Support Vector Machines (SVM) are applied to the problem of detecting and classifying broad acoustic-phonetic classes (events). In this paper an approach based on Non-Negative Matrix Deconvolution (NMD) is proposed to merge frame-based SVM predictions into segmental events. To turn the SVM outputs, which are frame-based, into a signal segmented in terms of(More)
OBJECTIVE Evaluate the role of different types of physical activity (PA) and diet on overall and central obesity incidence. METHODS A cohort study with 1621 adults was conducted in an urban Portuguese population. Anthropometrics were objectively obtained during 1999-2003 and 2005-2008. Overall, obesity was defined by a body mass index (BMI) ≥ 30.0 kg/m2(More)