However, the patients who comes under the category of 'grade 1' obese patients with a BMI below 35 kg/m2 have no significant relation between Body Mass Index and mortality. While the grade 2 and 3 category patients with a BMI of 35 kg/m2 and more have 29 percent increased risk of death. This concludes that mortality risk among obese patients is largely contributed to the effect of the highest Body Mass Index's.
Katherine Flegal (Centers for Disease Control and Prevention, Hyattsville, Maryland, US) and colleagues, says that the study associates the mortality in adults with current standard BMI categories used in the United States and internationally. The findings also provide an information about the 'obesity paradox'. But BMI cannot be taken as a sole health risk phenotype, because their are many differences which are associated with the nutritional status, disability, disease, and mortality risk, reported The Times of India.
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