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1.
Eur J Clin Nutr ; 70(10): 1155-1161, 2016 10.
Artigo em Inglês | MEDLINE | ID: mdl-27302673

RESUMO

BACKGROUND/OBJECTIVES: We previously found that the OPUS School Meal Study improved reading and increased errors related to inattention and impulsivity. This study explored whether the cognitive effects differed according to gender, household education and reading proficiency at baseline. SUBJECTS/METHODS: This is a cluster-randomised cross-over trial comparing Nordic school meals with packed lunch from home (control) for 3 months each among 834 children aged 8 to 11 years. At baseline and at the end of each dietary period, we assessed children's performance in reading, mathematics and the d2-test of attention. Interactions were evaluated using mixed models. Analyses included 739 children. RESULTS: At baseline, boys and children from households without academic education were poorer readers and had a higher d2-error%. Effects on dietary intake were similar in subgroups. However, the effect of the intervention on test outcomes was stronger in boys, in children from households with academic education and in children with normal/good baseline reading proficiency. Overall, this resulted in increased socioeconomic inequality in reading performance and reduced inequality in impulsivity. Contrary to this, the gender difference decreased in reading and increased in impulsivity. Finally, the gap between poor and normal/good readers was increased in reading and decreased for d2-error%. CONCLUSIONS: The effects of healthy school meals on reading, impulsivity and inattention were modified by gender, household education and baseline reading proficiency. The differential effects might be related to environmental aspects of the intervention and deserves to be investigated further in future school meal trials.


Assuntos
Cognição/fisiologia , Características da Família , Serviços de Alimentação , Instituições Acadêmicas , Criança , Fenômenos Fisiológicos da Nutrição Infantil , Estudos Cross-Over , Dinamarca , Avaliação Educacional , Feminino , Humanos , Masculino , Estado Nutricional , Fatores Sexuais , Resultado do Tratamento
2.
Eur J Clin Nutr ; 69(5): 626-31, 2015 May.
Artigo em Inglês | MEDLINE | ID: mdl-25491500

RESUMO

BACKGROUND/OBJECTIVES: A nutritionally adequate diet in childhood is important for health and resistance of allergies and infections. This study explored the effects of school meals rich in fish, vegetables and fibre on school attendance, asthma, allergies and illness in 797 Danish 8- to 11-year-old children. No comparable studies conducted in high-income settings have been identified. SUBJECTS/METHODS: The OPUS School Meal Study was a cluster-randomised cross-over trial. Children from third and fourth grades at nine Danish schools received school meals or usual packed lunch (control) for two 3-month periods. Occurrence and duration of illnesses, asthma and allergies during the last 14 days were recorded by parental questionnaires at baseline and after each 3-month period. Self-reported well-being was assessed by visual analogue scales. RESULTS: The school meals did not affect school attendance, parent-reported occurrence or duration of asthma and allergies or self-reported well-being. The most common symptoms of illness were stomach pain (24%), headache (28%) and cold (24%). A slightly higher number of children experienced headaches in the school meal (27%) compared with the control period (22%) (P=0.02). However, subgroup analyses showed that this effect was only seen in children eating school meals in the classroom (P=0.007), and not in common dining areas (P=0.2). No effect was found on other symptoms of illness. CONCLUSIONS: Provision of nutritionally balanced school meals did not affect school attendance, asthma, allergies, illness or well-being in 8- to 11-year-old children. The slight increase in occurrence of headaches seems to be related to the physical eating environment.


Assuntos
Proteção da Criança/estatística & dados numéricos , Dieta/normas , Serviços de Alimentação/normas , Cefaleia/epidemiologia , Instituições Acadêmicas , Asma/epidemiologia , Criança , Fenômenos Fisiológicos da Nutrição Infantil , Análise por Conglomerados , Estudos Cross-Over , Dinamarca/epidemiologia , Feminino , Cefaleia/etiologia , Humanos , Hipersensibilidade/epidemiologia , Almoço , Masculino , Refeições , Serviços de Saúde Escolar , Inquéritos e Questionários
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