Full text
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| Author(s): |
Natacha Toral
Total Authors: 1
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| Document type: | Master's Dissertation |
| Press: | São Paulo. |
| Institution: | Universidade de São Paulo (USP). Faculdade de Saúde Pública (FSP/CIR) |
| Defense date: | 2006-03-15 |
| Examining board members: |
Betzabeth Slater Villar;
Rosa Wanda Diez Garcia;
Dirce Maria Lobo Marchioni
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| Advisor: | Betzabeth Slater Villar |
| Abstract | |
Introduction: Over the process of health-related behavior change, people move through different steps called stages of change. The development of nutritional intervention tailored to each stage of change can contribute to the adoption of healthy dietary practices among adolescents. Objective: to evaluate the stages of change and their relationship with dietary intake among adolescents. Methods: Observational cross-sectional study with adolescents from public schools of Piracicaba. Demographic and anthropometric data, sexual maturation and dietary intake (food frequency questionnaire) were examined. Food perception was evaluated comparing dietary intake with self-rated diet. Stages of change classification (precontemplation, contemplation, preparation, action, maintenance) was assessed by a specific algorithm. Results: The sample included 390 adolescents: mean age of 12.4 years, 46.4% boys, 78.7% pubescents and 21,1% overweight. Mean daily energy intake was 3645kcal and 36,7% of adolescents had excessive intake of dietary fat. Average intake of fruits, vegetables and sweets were respectively 2.3, 2.4 and 4.5 portions per day. More than 44% of adolescents were unaware of their unfavourable dietary intake and were not interested in change it. About 40% of adolescents were assigned in maintenance stage. A significant relationship was observed between stages of change and dietary intake. Adolescents were re-classified into stages of change to identify individuals with similar characteristics according to their dietary intake and their food perception. Conclusion: The stage of change assignment, in association with dietary intake and food perception data, allowed the identification of risk groups, considering their inadequate dietary practices and the lack of awareness about them. It should be emphasize the necessity of the development of future nutritional intervention tailored to this population. (AU) | |