Banca de DEFESA: THAIS LIMA DIAS BORGES

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : THAIS LIMA DIAS BORGES
DATE: 10/12/2019
TIME: 09:00
LOCAL: Sala de aula 7 do Departamento de Nutrição - DNUT/UFRN
TITLE:

Food diaries with photos taken by visually impaired people: Development and validation of protocol

KEY WORDS:

Visual impairment. Food intake. Photography.

PAGES: 90
BIG AREA: Ciências da Saúde
AREA: Nutrição
SUMMARY:

Research aimed at assessing the food intake of visually impaired people is still scarce. Most studies about this group of people focus on identifying their nutritional status and diet-related difficulties, and when assessing dietary intake of these individuals, they do not employ specific methods that are valid for the visually impaired. Therefore, the development of strategies for assessing food intake that meet the specificities of a visually impaired person will contribute to health promotion and actions for disease prevention. These alternatives will also provide more autonomy when it comes to self-care related to health and nutrition within this population. Thus, the objective of the present research was to develop and validate a protocol for recording a food diary with photos taken by visually impaired people using smartphones. This development and validation study was carried out in three stages. In the first one, a technique for taking photos of food by visually impaired people using smartphones was established, as well as the register of protocols for execution. The second one comprehended the visually impaired people’s photographic recordings of three standardized meals (breakfast, lunch/dinner and snack), following the protocols developed for the study. In the third one, for protocol validation purposes, there was an assessment - done by a panel of specialists (nutritionists and photographers) - of the photographs regarding focus and angle in order to identify types and quantity of food/preparations in a five-point Likert Scale. The nutritionists also did the estimated food diary based on the observation of the photos which was compared to the researchers’. The agreement between the experts was assessed by Fleiss kappa. Five protocols were tested; two remained for being considered feasible by people who cannot see. The sample was comprised of 40 visually impaired people, the majority being blind (77,5%), male (67,5%), aged ≥ 40 years (57.5%). There was a high frequency of photos that were considered satisfactory in both protocols for all evaluated attributes. Considering the 45º Protocol, the agreement between the experts was substantial regarding the framing to identify the type of food (Fleiss Kappa = 0.62 and p = 0.00). In the 90º Protocol, there was substantial agreement of the framing to identify the portion size (Fleiss Kappa = 0.61). From the analysis of the food register estimated by the experts, there was 100% accuracy for most of the investigated foods, except for coffee with milk and grilled chicken (90% accuracy), in both protocols. In the comparison between the heavy dietary record by the researchers and the estimate by the experts, there was a better estimate of the amount of food for French bread, coffee with milk and processed grape juice, in both study protocols. It is concluded, therefore, that the protocols developed allow the qualitative assessment of the diet of people with visual impairment, indicating the need for other adjacent strategies to improve the quantitative assessment, done by the professional, to be forwarded along with the photographs.

BANKING MEMBERS:
Externa ao Programa - 1692571 - ANNA CECILIA QUEIROZ DE MEDEIROS
Externa à Instituição - DIRCE MARIA LOBO MARCHIONI - USP
Presidente - 1891751 - URSULA VIANA BAGNI