background: with regard to the importance of preconception conditions in maternal health and fertility, preconception risk assessment makes treatment trends and pregnancy outcome more successful among infertile couples. this study has tried to investigate preconception risk assessment in infertile couples. materials and methods: this is a descriptive analytical survey conducted on 268 subjects,...

Concentrations of polychlorinated dibenzofurans (PCDFs) and polychlorinated dibenzo-p-dioxins (PCDDs) in Tittabawassee River floodplain soils and biota downstream of Midland, Michigan, USA, are greater than regional background concentrations. From 2005 to 2008, a multiple lines of evidence approach was utilized to evaluate the potential for effects of PCDD/DFs on American robins (Turdus migrato...

OBJECTIVE To evaluate measurement error structure in dietary assessment instruments and to investigate its implications for nutritional studies, using urinary nitrogen excretion as a reference biomarker for protein intake. DESIGN The dietary assessment methods included different food-frequency questionnaires (FFQs) and such conventional dietary-report reference instruments as a series of 24-h...

BACKGROUND The application of technology in the area of dietary assessment has resulted in the development of an array of tools, which are often specifically designed for a particular country or region. OBJECTIVE The aim of this study was to describe the development, validation, and user evaluation of a Web-based dietary assessment tool "Foodbook24." METHODS Foodbook24 is a Web-based, dieta...

BACKGROUND Late adolescence to early adulthood is a period of lifestyle change and personal development which may influence dietary behaviour. Understanding dietary trajectories across this age range may help in targeting interventions appropriately. This scoping review aimed to assess how longitudinal change in diet is conceptualised and measured between the ages of 13 to 30. METHODS We sear...

Dietary indices evaluate diet quality, usually based on current dietary guidelines. Indices can therefore contribute to our understanding of early-life obesity-risk dietary behaviours. Yet indices are commonly applied to dietary data collected by onerous methods (e.g., recalls or records). Short dietary assessment instruments are an attractive alternative to collect data from which to derive an...

Abstract Background Nutrition and bone fracture risk are intimately related in inflammatory bowel disease (IBD). Crohn’s (CD) patients at increased of low mineral density (BMD) fractures. This may be due to chronic inflammation, corticosteroid exposure, inadequate consumption nutrients minerals such as calcium (ie. lactose intolerance), food aversion, symptoms, and/or possible altered absorptio...

BACKGROUND Malnutrition is a common cause of morbidity and mortality in children with congenital heart disease (CHD). This study aimed to identify prevalence and predictors of malnutrition in Egyptian children with symptomatic CHD. METHODS This case-control study included 100 children with symptomatic CHD (76 acyanotic and 24 cyanotic) and 100 healthy children matched for age and sex as a con...