نتایج جستجو برای: strategy frequency questionnaire
تعداد نتایج: 994161 فیلتر نتایج به سال:
It would be of enormous public health importance if diet and physical activity, both modifiable behavioral factors, were causally related to cancer. Nevertheless, the nutritional epidemiology of cancer remains problematic, in part because of persistent concerns that standard questionnaires measure diet and physical activity with too much error. We present a new strategy for addressing this meas...
BACKGROUND Online dietary assessment tools offer advantages over printed questionnaires, such as the automatic and direct data storage of answers, and have the potential to become valuable research methods. We developed an online survey system (web-FFQ) for the existing printed FFQ used in the JPHC-NEXT protocol, the platform of a large-scale genetic cohort study. Here, we examined the validity...
BACKGROUND National dietary surveys among Norwegian 12-months olds have been conducted twice: in 1999 and 2007. At both time-points diet were assessed by a semi-quantitative food frequency questionnaire (SFFQ) (the SFFQ-1999 and the SFFQ-2007). Modifications in the SFFQ-2007 compared to the SFFQ-1999 have been made; therefore, the objective of the present study has been to explore the comparabi...
A food frequency questionnaire (FFQ) is a common method used to assess individual long-term dietary intake of foods and nutrients. The questionnaires elicit subjectively reported “usual frequency” consuming an item from list preference (FFPQ) needed facilitate studies assessing the patterns ischemic stroke patients. Objectives: This study aimed develop validate premorbid habits patients.Methods...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید