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Food frequency questionnaire as an indicator of serum essential n‐3 and n‐6 polyunsaturated fatty acids concentrations in early pregnancy, according to body mass index (1022.3)
Author(s) -
Lepsch Jaqueline,
Vaz Juliana,
Pinto Thatiana,
Rebelo Fernanda,
Farias Dayana,
FrancoSena Ana Beatriz,
Kac Gilberto
Publication year - 2014
Publication title -
the faseb journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.709
H-Index - 277
eISSN - 1530-6860
pISSN - 0892-6638
DOI - 10.1096/fasebj.28.1_supplement.1022.3
Subject(s) - polyunsaturated fatty acid , underweight , docosahexaenoic acid , overweight , linoleic acid , medicine , eicosapentaenoic acid , body mass index , pregnancy , food frequency questionnaire , arachidonic acid , obesity , zoology , endocrinology , fatty acid , chemistry , biology , biochemistry , enzyme , genetics
Objective: To investigate whether food frequency questionnaire (FFQ) is indicative of serum essential n‐3 and n‐6 polyunsaturated fatty acids (PUFA) concentrations in early pregnancy and if correlations differ between Body Mass Index (BMI) categories. Methods: Cross‐sectional study of 248 pregnant women between 6th and the 13th weeks of gestation. Analyses comprised Spearman’s correlation (rs) for total sample and also stratified according to BMI (kg/m2) [underweight/normal weight (<25; n=139) and overweight (蠅25; n=109)]. Results: In the total sample, dietary report was significantly correlated with serum PUFA (rs=0.243, P<0.001), linoleic acid (LA, 18:2n‐6; rs=0.278, P<0.001), eicosapentaenoic acid (EPA, 20:5n‐3; rs=0.277, P<0.001) and docosahexaenoic acid (DHA, 22:6n‐3; rs=0.207, P<0.001) concentrations. We observed that underweight/normal weight women presented significant correlations between FFQ and serum concentrations of total PUFA (rs=0.339, P<0.001), LA (rs=0.332, P<0.001), EPA (rs=0.355, P<0.001) and DHA (rs=0.179, P=0.034) and overweight women only with alpha linolenic acid (ALA, 18:3n‐3; rs=0.195, P=0.042) and DHA (rs=0.241, P=0.011). Conclusions: FFQ may be indicative of the serum composition of essential n‐3 and n‐6 PUFAs in early pregnancy. Higher correlations were observed in the underweight/normal weight women. Grant Funding Source : Supported by FAPERJ, Cnpq and CAPES