TY - JOUR
T1 - Validity and reliability of an omega-3 fatty acid food frequency questionnaire for first-generation Midwestern Latinas
AU - Lora, Karina R.
AU - Lewis, Nancy M.
AU - Eskridge, Kent M.
AU - Stanek-Krogstrand, Kaye
AU - Ritter-Gooder, Paula
N1 - Funding Information:
Funding for this study was provided by the Vice-Chancellor for Research Minority Grants at The University of Nebraska. Special thanks to Daryl A Travnicek for his statistical assistance and to Paula Ritter-Gooder for her editorial assistance. We are grateful to Diana Garcia, Blanca Follwer, Gabriela Ortiz, and July Braunsroth for their assistance during recruitment.
PY - 2010/8
Y1 - 2010/8
N2 - This study tested the hypothesis that a culturally developed omega-3 (n-3) fatty acid food frequency questionnaire (FFQ) could be an accurate instrument to capture n-3 fatty acid food intakes of first-generation Midwestern Latinas. The goal of the study was to assess validity and test-retest reliability of an FFQ to estimate total n-3 fatty acid (total n-3), α-linolenic acid (ALA), eicosapentaenoic acid (EPA), and docosahexaenoic acid (DHA) intakes. An n-3 FFQ was developed and pilot tested. Two FFQs and 3 nonconsecutive 24-hour recalls were collected from 162 participants. Pearson correlation and paired t test were used to test the hypothesis. Correlation of the 2 FFQs was 0.71 for total n-3, 0.65 for ALA, 0.74 for EPA, and 0.54 for DHA (P < .01). The means of the 2 FFQs and of the 24-hour recalls were not significantly different for total n-3 and ALA (P > .05), but were significantly different for EPA and DHA. The n-3 FFQ had acceptable reliability, validated only total n-3 and ALA, and provided relevant findings about the n-3 eating habits of Midwestern Latinas.
AB - This study tested the hypothesis that a culturally developed omega-3 (n-3) fatty acid food frequency questionnaire (FFQ) could be an accurate instrument to capture n-3 fatty acid food intakes of first-generation Midwestern Latinas. The goal of the study was to assess validity and test-retest reliability of an FFQ to estimate total n-3 fatty acid (total n-3), α-linolenic acid (ALA), eicosapentaenoic acid (EPA), and docosahexaenoic acid (DHA) intakes. An n-3 FFQ was developed and pilot tested. Two FFQs and 3 nonconsecutive 24-hour recalls were collected from 162 participants. Pearson correlation and paired t test were used to test the hypothesis. Correlation of the 2 FFQs was 0.71 for total n-3, 0.65 for ALA, 0.74 for EPA, and 0.54 for DHA (P < .01). The means of the 2 FFQs and of the 24-hour recalls were not significantly different for total n-3 and ALA (P > .05), but were significantly different for EPA and DHA. The n-3 FFQ had acceptable reliability, validated only total n-3 and ALA, and provided relevant findings about the n-3 eating habits of Midwestern Latinas.
KW - Docosahexaenoic acid
KW - Eicosapentaenoic acid
KW - Food frequency questionnaire
KW - Hispanic Americans
KW - Omega-3 fatty acids
KW - Reproducibility of results
KW - Validation study
KW - α-Linolenic acid
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U2 - 10.1016/j.nutres.2010.07.007
DO - 10.1016/j.nutres.2010.07.007
M3 - Article
C2 - 20851309
AN - SCOPUS:77956828942
SN - 0271-5317
VL - 30
SP - 550
EP - 557
JO - Nutrition Research
JF - Nutrition Research
IS - 8
ER -