| 1. |
- Hallström, Lena, 1958-, et al.
(författare)
-
Breakfast habits and factors influencing food choices at breakfast in relation to socio-demographic and family factors among European adolescents : The HELENA Study
- 2011
-
Ingår i: Appetite. - : Elsevier BV. - 0195-6663 .- 1095-8304. ; 56:3, s. 649-657
-
Tidskriftsartikel (refereegranskat)abstract
- The aim was to investigate factors associated with breakfast habits and influences on food choices at breakfast, within the framework of the EU-funded HELENA Study in 3528 adolescents from ten cities across Europe. The statement “I often skip breakfast” and personal and socio-environmental factors hypothesized to be related to food choice at breakfast were dichotomized. Logistic regression was used to investigate the association between behavioral (skipping versus consume breakfast) and individual, personal and socio-environmental factors. Half of the adolescents (fewer girls) indicated being regular breakfast consumers. Mothers’ education and family structure were associated with breakfast consumption. Adolescents with peers who gave little or no encouragement, and boys whose parents gave encouragement, were more likely to be regular breakfast consumers. Personal factors influenced the girls more than the boys in their choice of food for breakfast and socio-environmental factors influenced younger adolescents more than older adolescents. In conclusion, a broad range of (behavioral, individual, personal and socio-environmental) factors influence breakfast habits and food choices at breakfast among European adolescents. Breakfast habits were inappreciably influenced by socio-demographical factors. These factors need to be considered in discussions surrounding the development of nutritional intervention programs intended for adolescents.
|
|
| 2. |
- Vandevijvere, Stefanie, et al.
(författare)
-
Evaluation of food and nutrient intake assessment using concentration biomarkers in European adolescents from the HELENA study
- 2013
-
Ingår i: British Journal of Nutrition. - 0007-1145 .- 1475-2662. ; 109:4, s. 736-747
-
Tidskriftsartikel (refereegranskat)abstract
- Accurate food and nutrient intake assessment is essential for investigating diet-disease relationships. In the present study, food and nutrient intake assessment among European adolescents using 24 h recalls (mean of two recalls) and a FFQ (separately and the combination of both) were evaluated using concentration biomarkers. Biomarkers included were vitamin C, β-carotene, DHA+EPA, vitamin B12 (cobalamin and holo-transcobalamin) and folate (erythrocyte folate and plasma folate). For the evaluation of the food intake assessment 390 adolescents were included, while 697 were included for the nutrient intake assessment evaluation. Spearman rank and Pearson correlations, and validity coefficients, which are correlations between intake estimated and habitual true intake, were calculated. Correlations were higher between frequency of food consumption (from the FFQ) and concentration biomarkers than between mean food intake (from the recalls) and concentration biomarkers, especially for DHA+EPA (r 0·35 v. r 0·27). Most correlations were higher among girls than boys. For boys, the highest validity coefficients were found for frequency of fruit consumption (0·88) and for DHA+EPA biomarker (0·71). In girls, the highest validity coefficients were found for fruit consumption frequency (0·76), vegetable consumption frequency (0·74), mean fruit intake (0·90) and DHA+EPA biomarker (0·69). After exclusion of underreporters, correlations slightly improved. Correlations between usual food intakes, adjusted for food consumption frequency, and concentration biomarkers were higher than correlations between mean food intakes and concentration biomarkers. In conclusion, two non-consecutive 24 h recalls in combination with a FFQ seem to be appropriate to rank subjects according to their usual food intake
|
|
