<![CDATA[The purpose of this study was to analyze how the effect of each increase in Body Mass Index (BMI) on the increase in blood pressure (BP). The research design was a laboratory experiment with 52 non-obese and obese rats as subjects (non-obese, n=14 and obese, n=38). Rats were induced obesity using a high-fat diet for four weeks. BMI used is based on the Lee Index with obesity indicators if 300 g/cm. Data analysis using independent sample t-test, simple linear regression test, and Pearson correlation test; (p0.05). The results: BP in non-obese rats was lower than obese rats (89.00±7.38 vs 190.11±4.42; p=0.001*), BMI was positively associated with BP (p=0.001*); an increase in BMI will increase BP (p=0.001*), there is a strong correlation between BMI and BP (r=0.977; p=0.001*). The regression equation (Y = 707.42 + 2.75 X) indicates that every 1 g/cm increase in BMI will be followed by an increase in BP of 2.75 mmHg. The analysis of R-square = 0.942 shows that the accuracy of the linear equation model is 94.2%. In conclusion, BMI has a strong positive correlation with BP, an increase in BMI will increase BP; obesity induces high blood pressure in rats.]]>
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