This study aims to measure and describe the shape of the relationship between BMI, fasting plasma glucose and blood pressure on indigenous groups of Amazonia Para. We studied 297 adults across the ethnic Kaip (Xikrin and Kararaô), Araweté, Parakanã, and Arara Asurini located in the State of Pará, northern Brazil. The variables BMI, blood glucose and blood pressure were measured and categorized as still in overweight, obesity, diabetes, the glucose intolerance and hypertension. The relationship of BMI with the other variables was tested by linear regression method by adopting a significance level of 5% (p ≤ 0.05). Mean BMI (23.7 kg/m2), fasting plasma glucose (83.4 mg / dL), diastolic blood pressure (60.0 mmHg) and age (49 years) showed no significant difference between genders and for men only systolic blood pressure (98.0 mmHg) was higher. The prevalence of overweight was 23.6% and obesity from 5.7%. Were not identified new cases of diabetes mellitus type 2, but four cases (1.3%) of the
disease were reported. The impaired glucose tolerance was present in 2.4% of the population and hypertension in 1.3%. The BMI associated with the glucose, systolic blood pressure and diastolic blood pressure (DBP), is better explained from diastolic blood pressure (BMI = 20590 +0.52 DBP). The relationship of BMI with blood glucose levels and blood pressure was positive, but further studies are needed to have more clarity between cause and effect.
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