Poster Topical Area: Community and Public Health Nutrition
Poster Board Number: 57
Objectives: To verify the association between dietary quality and the food environment in adolescents living in São Paulo, Brazil
Methods: Data from the 2015 Health Survey of São Paulo (ISA-Capital) were used. This is a cross-sectional population-based study with a representative sample of the urban area of the city. Data from 521 adolescents that answered a structured questionnaire, had at least one 24 dietary recall (24HR) and the household location geocoded were included in the present analysis. The dietary quality was assessed by the Revised Brazilian Health Eating Index (BHEI-R) score that varies between 0 and 100 points, which represents poor diet and optimal diet respectively. The food environment data were obtained from the Municipality of São Paulo and the establishments were classified in: fast-foods restaurants, street markets, steakhouses, pizzerias, full service restaurants, markets or supermarkets. Buffers of 500 and 1000 meters were drawn around the households and each type of establishment was counted. The categories for the 500 meters buffers were the presence or not of these establishments. The 1000 meters buffers were classified as 0, 1 and 2 or more establishments. To verify the associations between BHEI-R and the establishments, multilevel linear regression models were used. The models were adjusted for sex, age, family income, body mass index, leisure-time physical activity, area of residence in the city and human development index.
Results: The BHEI-R average score was 62.15. After linear regression models, there was a significant negative association between BHEI-R and the presence of fast-food restaurants (β=-11.90; 95% IC:-20.74, -3.06) and steakhouses (β=-10.14; 95% IC:-17.70, -2.59) for 500 meters buffers. Associations were not significant for other establishments for this buffer. For the 1000 meters buffers, the presence of 2 or more fast-food restaurants was associated with lower BHEI-R (β=-9.53; 95% IC: -15.73, -3.34). No significant associations were found for the other establishments for 1000 meters buffer.
Conclusions: The presence of fast-food restaurants and steakhouses around adolescent's households are associated with lower diet quality.
University of Sao Paulo
São Paulo, Sao Paulo, Brazil