Banca de DEFESA: ALEXANDRA RODRIGUES BEZERRA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : ALEXANDRA RODRIGUES BEZERRA
DATE: 15/03/2022
TIME: 09:00
LOCAL: https://meet.google.com/swr-idsc-dqj
TITLE:

Developing and validating the short version of a food frequency questionnaire applied to pregnant women living in Northeastern Brazil

KEY WORDS:

Food survey; Pregnancy; Nutritional epidemiology; Food consumption.

PAGES: 132
BIG AREA: Ciências da Saúde
AREA: Nutrição
SUMMARY:

Pregnancy is a critical period for the mother-child binomial, where knowing the food consumption of the pregnant woman is extremely important, given that this assessment makes it possible to characterize the level of risk and vulnerability to nutritional deficiencies and excesses. The food frequency questionnaire is considered a useful, practical and informative tool to carry out the evaluation of habitual consumption, however, most tools are considered extensive, demanding a longer time for their application, which can result in participants' fatigue, and an increase in the non-response rate, increasing the need to develop short tools, aiming to facilitate the applicability, understanding and analysis of data, while maintaining the validity of the tool. Thus, this dissertation is structured in three sections, being an introductory chapter, a literature review chapter and a chapter composed of two scientific articles. The first article, entitled “Food frequency questionnaires developed and validated for pregnant women: a systematic review of the literature”, is a systematic review carried out by searching the PUBMED, EMBASE, Scopus and LILACS databases, where the studies were evaluated: (1) based on their correlation coefficient in the validation and reproducibility analyses; and (2) based on methodological quality, which was evaluated following the scoring system proposed by the EURRECA group. Of the fourteen studies selected, half of the tools evaluated were classified as having excellent methodological quality, reflecting validation and reproducibility correlation coefficients classified as moderate and high (r≥0.40). The second original article is a validation study entitled “Elaboration and validation of the reduced version of a food frequency questionnaire for pregnant women residing in the northeast of Brazil”, where, to reduce the list of the original questionnaire containing 112 items, the following was used Pearson correlation, multiple linear regression and frequency of consumption. For the validation analysis, gross, energy-adjusted and attenuated values of energy and nutrients of interest were used, where acceptable correlation values ranged from 0.40-0.70, with p<0.05 considered significant. Also, Bland & Altman graphs were constructed to analyze the agreement between the methods. In this way, the food frequency questionnaire was reduced to 84 items, a 25% reduction compared to the original. The correlation coefficient showed acceptable values for energy (0.40, p<0.001), vitamin B12 (0.50, p<0.001), magnesium (0.85, p<0.001), phosphorus (0.88, p<0.001). 0.001), selenium (0.76, p<0.001), cholesterol (0.62, p<0.001), saturated fat (0.74, p<0.001), monounsaturated (0.84, p<0.001), polyunsaturated (0.68, p<0.001) and fibers (0.78, p<0.001). Furthermore, it was demonstrated that the FFQ overestimated the consumption of energy and nutrients in relation to the 24-hour food recall. Thus, the shortened version of the FFQ developed in this study is a useful and reliable tool to assess the food consumption of pregnant women.

BANKING MEMBERS:
Presidente - 1851685 - ALANE CABRAL MENEZES DE OLIVEIRA
Externa ao Programa - 1364684 - MARIA IZABEL SIQUEIRA DE ANDRADE
Interna - 1120995 - SANDRA MARY LIMA VASCONCELOS