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BACKGROUND The prevalence of vitamin D deficiency and its causative factors has been estimated more frequently in elder population, women, and patients with osteoporosis in different countries, but this issue is less defined in male population within different age groups especially in Asian countries. Therefore, we studied the role of effective factors in(More)
The aim of this study is to determine knowledge, attitude and practice of Iranian households and health staff on nutrition at province level. The sampling method in NUTRIKAP survey for households in each province is single-stage cluster sampling and the size of clusters is equal. The sampling method for health staff in each province is stratified random(More)
BACKGROUND The aim of this study was to assess knowledge, attitude and practice of urban and rural households toward principles of nutrition in Iran. METHODS The study population was Iranian households who live in rural and urban areas in all provinces of the country. The sampling method at households' level in each province was single stage cluster(More)
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