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- W2034963068 abstract "To evaluate the ability of an FFQ, designed for use in Brazilian pregnant women, to estimate nutrient intakes during pregnancy.A prospective study was conducted among 103 pregnant women attended by the Brazilian national health-care service. Food intake during pregnancy was evaluated by three 24 h dietary recalls (24hR), one per trimester of pregnancy, and also by two FFQ. The FFQ with eighty-five food items included questions about frequency of intake and portion sizes during two periods: the first 24 weeks of pregnancy and the pregnancy period as a whole. Deattenuated Pearson’s correlation coefficients and joint classification into quartiles of nutrient intake were applied.Ribeira˜o Preto, Sa˜o Paulo State, Brazil.One hundred and three pregnant women, aged 18–35 years.Acceptable correlation coefficients (r > 0.35) were found for Ca, K, Zn, Mg, fibre, vitamin C, niacin and folic acid for intake for the first 24 weeks; and for energy, lipids, protein, carbohydrate, Fe, K, Zn, fibre, vitamin B6, riboflavin and niacin for the gestational period as a whole. A high proportion of study participants (≥ 70 %) were categorized into the same or adjacent quartiles for estimated energy, carbohydrate, Ca, K, fibre, Zn, cholesterol, vitamin A, riboflavin, niacin, vitamin C, vitamin E and folic acid. Gross misclassification ranged from 2.3% (dietary fibre) to 12.5% (vitamin A, thiamin and SFA).The FFQ is a useful tool for assessing categories of nutrient intake during pregnancy, since a high proportion of women were classified into the same or adjacent quartiles." @default.
- W2034963068 created "2016-06-24" @default.
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- W2034963068 date "2012-08-16" @default.
- W2034963068 modified "2023-10-14" @default.
- W2034963068 title "Relative validation of a quantitative FFQ for use in Brazilian pregnant women" @default.
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- W2034963068 doi "https://doi.org/10.1017/s1368980012003783" @default.
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