Risco cardiovascular entre vegetarianos e onívoros : um estudo comparativo

• Ano de defesa: 2005
• Autor(a) principal: Teixeira, Rita de Cássia Moreira de Almeida
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal do Espírito Santo; BR; Mestrado em Saúde Coletiva; Centro de Ciências da Saúde; UFES; Programa de Pós-Graduação em Saúde Coletiva
• Palavras-chave em Português: Vegetarian and omnivorous eating habits; Cardiovascular risk; Non transmittible chronic diseases; Alimentos vegetarianos; Alimentos onívoros; Sistema cardiovascular; Coração - Doenças; Alimentação vegetariana e onívora; Risco cardiovascular; Doenças crônicas não transmissíveis; Saúde Coletiva; 614
• Link de acesso: http://repositorio.ufes.br/handle/10/5699

The increase in Non-transmittible Chronic Diseases (NTDCs) has been associated to changes in lifestyle, mainly those related to eating and sedentary habits. On this theme, there is considerable epidemic evidence suggesting that vegetarian eating habits are associated to the low risk from these diseases, especially cardiovascular diseases (CVDs). For the evaluation of the cardiovascular risk (CVR) in vegetarians (VEGs) and omnivores (ONIs), a historical cohort study was done with 201 individuals (aged from 35 to 64 years). They were included in the 67 VEGs study for the past five years, from Greater Vitória, and 134 ONIs from the Project MONICA/Vitória, based on socioeconomic class, sex, age and race/ethnic group. Dietary data from three 24 hour-records which measured anthropometrics, biochemistries and hemodynamics were obtained at the UFES Cardiovascular Investigation Clinic. The estimated consumption of Na+ e k+ was determined by twelve-hour urine collection during the night period. The X2 test was used for comparison of proportions and the Student test t for averages. The relative risk was calculated and quantified the cardiovascular risk by Framingham algorithm. The group average age was between 47+8 years and the average vegetarianism time of between 19+10 years, being an ovolactovegetarian diet followed by 73% of VEGs. Most of the participants belonged to the classes B and C and the predominant religion was the Seventh Day Adventist. VEGs ingested less protein and animal fats and more carbohydrates and fibers. Blood pressure, fasting glucemia, total cholesterol, LDL-c and triglycerides were lower among VEGs (P < 0,001) and the hypertension risk was approximately 6,5 times greater among ONIs (IC95% 2,7-15,4; P < 0,001). The HDL-c was not different among the groups. Corporal Mass Index > 30kg/m2 (obesity) was not identified in any VEG. Among ONIs, 20% presented obesity and 38% overweight. Na+ and Na/K were also smaller among VEGs, as well as the waist/hip reasoning. In agreement with the Framingham algorithm, VEGs presented smaller RCV (P < 0,001). The unbalanced omnivores eating habits, with protein excess and animal fats can largely be blamed for NTDCs unlocking, especially in hypertension, diabetes and obesity.