Obesity is a body mass index of 30 or more, corresponding to a poesrn 5 feet 4 inches tall and weighing 174 pounds, or 5 feet 10 inches tall and weighing 209 pounds or more. these findings have enormous implications for the nation’s care system because treatment rates for diabetes, hypertension, and other chronic problems are several times higher among severely obese individuals than among the moderately obese, sturm said. with these growth rates, accommodating severely obese patients in clinical practice will no longer be an unusual occurrence, sturm said. doctors, hospitals and other providers must be prepared to treat these people on a regular basis. This may require a substantial investment in new equipment. The rand study, published in the october 13 issue of the. Archives of internal medicine. , was based on the behavioral risk factor surveillance survey. The world’s largest telephone survey, it is conducted by the centers for disease control and prevention and tracks risks in the united states. Height and weight is based on self-reporting. 5 million respondents were included in the analysis.