Validity of a food frequency questionnaire to estimate long-chain polyunsaturated fatty acid intake among Japanese women in early and late pregnancy
Background: The relative validity of food frequency questionnaires for estimating long-chain polyunsaturated fatty acid (LC-PUFA) intake among pregnant Japanese women is currently unclear. The aim of this study was to verify the external validity of a food frequency questionnaire, originally develop...
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| Format: | Article |
| Language: | English |
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Japan Epidemiological Association
2017-01-01
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| Series: | Journal of Epidemiology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0917504016300223 |
| _version_ | 1811269107336609792 |
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| author | Minatsu Kobayashi |
| author_facet | Minatsu Kobayashi |
| author_sort | Minatsu Kobayashi |
| collection | DOAJ |
| description | Background: The relative validity of food frequency questionnaires for estimating long-chain polyunsaturated fatty acid (LC-PUFA) intake among pregnant Japanese women is currently unclear. The aim of this study was to verify the external validity of a food frequency questionnaire, originally developed for non-pregnant adults, to assess the dietary intake of LC-PUFA using dietary records and serum phospholipid levels among Japanese women in early and late pregnancy.
Methods: A validation study involving 188 participants in early pregnancy and 169 participants in late pregnancy was conducted. Intake LC-PUFA was estimated using a food frequency questionnaire and evaluated using a 3-day dietary record and serum phospholipid concentrations in both early and late pregnancy.
Results: The food frequency questionnaire provided estimates of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) intake with higher precision than dietary records in both early and late pregnancy. Significant correlations were observed for LC-PUFA intake estimated using dietary records in both early and late pregnancy, particularly for EPA and DHA (correlation coefficients ranged from 0.34 to 0.40, p < 0.0001). Similarly, high correlations for EPA and DHA in serum phospholipid composition were also observed in both early and late pregnancy (correlation coefficients ranged 0.27 to 0.34, p < 0.0001).
Conclusions: Our findings suggest that the food frequency questionnaire, which was originally designed for non-pregnant adults and was evaluated in this study against dietary records and biological markers, has good validity for assessing LC-PUFA intake, especially EPA and DHA intake, among Japanese women in early and late pregnancy. |
| first_indexed | 2024-04-12T21:36:07Z |
| format | Article |
| id | doaj.art-e042a619c3be4fae822a810993119e5e |
| institution | Directory Open Access Journal |
| issn | 0917-5040 1349-9092 |
| language | English |
| last_indexed | 2024-04-12T21:36:07Z |
| publishDate | 2017-01-01 |
| publisher | Japan Epidemiological Association |
| record_format | Article |
| series | Journal of Epidemiology |
| spelling | doaj.art-e042a619c3be4fae822a810993119e5e2022-12-22T03:15:54ZengJapan Epidemiological AssociationJournal of Epidemiology0917-50401349-90922017-01-01271303510.1016/j.je.2016.07.001Validity of a food frequency questionnaire to estimate long-chain polyunsaturated fatty acid intake among Japanese women in early and late pregnancyMinatsu KobayashiBackground: The relative validity of food frequency questionnaires for estimating long-chain polyunsaturated fatty acid (LC-PUFA) intake among pregnant Japanese women is currently unclear. The aim of this study was to verify the external validity of a food frequency questionnaire, originally developed for non-pregnant adults, to assess the dietary intake of LC-PUFA using dietary records and serum phospholipid levels among Japanese women in early and late pregnancy. Methods: A validation study involving 188 participants in early pregnancy and 169 participants in late pregnancy was conducted. Intake LC-PUFA was estimated using a food frequency questionnaire and evaluated using a 3-day dietary record and serum phospholipid concentrations in both early and late pregnancy. Results: The food frequency questionnaire provided estimates of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) intake with higher precision than dietary records in both early and late pregnancy. Significant correlations were observed for LC-PUFA intake estimated using dietary records in both early and late pregnancy, particularly for EPA and DHA (correlation coefficients ranged from 0.34 to 0.40, p < 0.0001). Similarly, high correlations for EPA and DHA in serum phospholipid composition were also observed in both early and late pregnancy (correlation coefficients ranged 0.27 to 0.34, p < 0.0001). Conclusions: Our findings suggest that the food frequency questionnaire, which was originally designed for non-pregnant adults and was evaluated in this study against dietary records and biological markers, has good validity for assessing LC-PUFA intake, especially EPA and DHA intake, among Japanese women in early and late pregnancy.http://www.sciencedirect.com/science/article/pii/S0917504016300223ValidationLong-chain polyunsaturated fatty acidEicosapentaenoic acidDocosahexaenoic acidPregnant women |
| spellingShingle | Minatsu Kobayashi Validity of a food frequency questionnaire to estimate long-chain polyunsaturated fatty acid intake among Japanese women in early and late pregnancy Journal of Epidemiology Validation Long-chain polyunsaturated fatty acid Eicosapentaenoic acid Docosahexaenoic acid Pregnant women |
| title | Validity of a food frequency questionnaire to estimate long-chain polyunsaturated fatty acid intake among Japanese women in early and late pregnancy |
| title_full | Validity of a food frequency questionnaire to estimate long-chain polyunsaturated fatty acid intake among Japanese women in early and late pregnancy |
| title_fullStr | Validity of a food frequency questionnaire to estimate long-chain polyunsaturated fatty acid intake among Japanese women in early and late pregnancy |
| title_full_unstemmed | Validity of a food frequency questionnaire to estimate long-chain polyunsaturated fatty acid intake among Japanese women in early and late pregnancy |
| title_short | Validity of a food frequency questionnaire to estimate long-chain polyunsaturated fatty acid intake among Japanese women in early and late pregnancy |
| title_sort | validity of a food frequency questionnaire to estimate long chain polyunsaturated fatty acid intake among japanese women in early and late pregnancy |
| topic | Validation Long-chain polyunsaturated fatty acid Eicosapentaenoic acid Docosahexaenoic acid Pregnant women |
| url | http://www.sciencedirect.com/science/article/pii/S0917504016300223 |
| work_keys_str_mv | AT minatsukobayashi validityofafoodfrequencyquestionnairetoestimatelongchainpolyunsaturatedfattyacidintakeamongjapanesewomeninearlyandlatepregnancy |