| dc.creator | Queiroz Carvalho,Gisele | |
| dc.creator | Pereira,Marcos | |
| dc.creator | Santana,Jerusa M. | |
| dc.creator | Louro,Iuri D. | |
| dc.creator | Santos,Djanilson B. | |
| dc.date | 2020-06-01 | |
| dc.date.accessioned | 2020-08-05T02:57:48Z | |
| dc.date.available | 2020-08-05T02:57:48Z | |
| dc.identifier | https://scielo.conicyt.cl/scielo.php?script=sci_arttext&pid=S0717-75182020000300396 | |
| dc.identifier.uri | https://revistaschilenas.uchile.cl/handle/2250/150734 | |
| dc.description | ABSTRACT Objectives: This study aimed to develop and validate a Food Frequency Questionnaire (FFQ) for assessing consumption of fatty acids among pregnant women. Methods: Two lists of foods were created according to percent contribution of each nutrient estimated by three 24-hour recalls: a long and short version FFQ to estimate long-chain polyunsaturated fatty acids (LCPUFAs). Student paired t-test and Pearson correlation coefficients were used to verify the differences in mean consumption of nutrients from the FFQ and 24-hour recall. The concordance between the consumption values of the two methods was assessed using the Bland-Altman method and quartiles concordance. Results: For the FFQ - long version, correlation values ranged from 0.33 (p<0.05) to 0.62 (p<0.01) for docosahexaenoic acid (DHA) and linoleic acid (LA), respectively. Eicosapentaenoic acid (EPA) and docosapentaenoic acid (DPA) were not correlated. Exact concordance ranged from 49.0% (energy) to 22.4% (EPA), and discordance ranged from 14.3% (DPA) to 2.0% (Saturated). The FFQ - short version had high correlations for LCPUFAs. Exact concordance ranged from 36.7% (n-3 LCPUFA) to 16.3% (DHA); and discordance from 12.2% (DPA) to 2.0% (arachidonic acid). Bland-Altman analysis showed good concordance for both versions. Conclusion: This nutrient-specific FFQ is a valid instrument to be used to estimate the level of consumption of fatty acids among pregnant women. | |
| dc.format | text/html | |
| dc.language | en | |
| dc.publisher | Sociedad Chilena de Nutrición, Bromatología y Toxicología | |
| dc.relation | 10.4067/S0717-75182020000300396 | |
| dc.rights | info:eu-repo/semantics/openAccess | |
| dc.source | Revista chilena de nutrición v.47 n.3 2020 | |
| dc.subject | Dietary assessment | |
| dc.subject | Food Frequency Questionnaire | |
| dc.subject | Long-chain polyunsaturated fatty acids | |
| dc.subject | Pregnant | |
| dc.subject | Relative validation | |
| dc.title | Relative validation of a food frequency questionnaire to assess dietary fatty acid intake | |
