Social and Behavioral Sciences Commons^™

Development And Validation Of A Short Questionnaire To Assess Sodium Intake, Karen E. Charlton, Krisela Steyn, Naomi Levitt, Deborah Jonathan, Jabuliswe Zulu, Johanna Nel

Faculty of Science, Medicine and Health - Papers: part A

Objectives: To develop and validate a short, food frequency questionnaire to assess habitual dietary salt intake in South Africans and to allow classification of individuals according to intakes above or below the maximum recommended intake of 6 g salt/day. Design: Cross-sectional validation study in 324 conveniently sampled men and women. Methods: Repeated 24-hr urinary Na values and 24-hr dietary recalls were obtained on three occasions. Food items consumed by > 5% sample and which contributed e 50 mg Na/serving were included in the questionnaire in 42 categories. A scoring system was devised, based on Na content of one index food per …