![]() Due to changes in weight and height with age, as well as their relation to body fatness, BMI levels among children and teens are expressed relative to other children of the same sex and age. Top of Page Is BMI interpreted the same way for children and teens as it is for adults?īMI is interpreted differently for children and teens even though it is calculated with the same formula. The following is an example of how sample BMI numbers would be interpreted for a 10-year-old boy. BMI-for-age weight status categories and the corresponding percentiles Weight Status Categoryĥ th percentile to less than the 85 th percentileĮqual to or greater than the 95 th percentile BMI-for-age weight status categories and the corresponding percentiles were based on expert committee recommendations and are shown in the following table. The BMI-for-age percentile growth charts are the most commonly used indicator to measure the size and growth patterns of children and teens in the United States. Consequently, a child’s BMI must be interpreted relative to other children of the same sex and age.īMI-for-age – Boys Growth Chart īMI-for-age – Girls Growth Chart Weight and height change during growth and development, as does their relation to body fatness. These percentiles express a child’s BMI relative to US children who participated in national surveys from 1963-65 to 1988-94 4. Top of Page What is a BMI percentile and how is it interpreted?Īfter BMI is calculated for children and teens, it is expressed as a percentile obtained from either a graph or a percentile calculator linked below. The BMI number is calculated using standard formulas. Use the Child and Teen BMI Calculator to calculate BMI.Refer to Measuring Children’s Height and Weight Accurately At Home for guidance. How is BMI calculated for children and teens?Ĭalculating BMI using the BMI Percentile Calculator involves the following steps: If an athlete or other person with a lot of muscle has a high BMI, is that person still considered to be overweight?.What are the health consequences of obesity during childhood?.My two children have the same BMI values, but one is considered to have obesity and the other is not.Can I determine if my child or teen has obesity by using an adult BMI calculator?.How can I tell if my child is overweight or has obesity?.What are the BMI trends for children and teens in the United States?.Why can't healthy weight ranges be provided for children and teens?.Is BMI interpreted the same way for children and teens as it is for adults?.How is BMI used with children and teens?.What is a BMI percentile and how is it interpreted?.How is BMI calculated for children and teens?.© 2013, Copyright the Authors Journal compilation © 2013, The American Geriatrics Society. This study lends further support to the belief that the World Health Organization guidelines for BMI are overly restrictive in old age. Persons who increased or decreased in BMI had a greater mortality risk than those who had a stable BMI, particularly those aged 70 to 79. Old persons who were overweight had a lower mortality risk than old persons who were of normal weight, even after controlling for weight change and multimorbidity. That is, the higher mortality risks associated with BMI loss and gain were less severe in very old age. Age moderated the BMI change differences. 001) and 53% higher for the BMI gain group than for the BMI stable group (RR = 1.53, P =. Furthermore, mortality hazard was 65% higher for the BMI loss group than for the BMI stable group (RR = 1.65, P <. 603), independent of age, education, and multimorbidity. 011), and the mortality hazard for the obese group did not differ significantly from that of the normal-underweight group (RR = 0.93, P =. Mortality hazard was 20% lower for the overweight group than the normal-underweight group (relative risk (RR) = 0.80, P =. Information about survival status and time of death was obtained from the Swedish Civil Registration System. Pooled data from three multidisciplinary prospective population-based studies: OCTO-twin, Gender, and NONA.Įight hundred eighty-two individuals aged 70 to 95.īMI was calculated from measured height and weight as kg/m(2). To examine how body mass index (BMI) and change in BMI are associated with mortality in old (70-79) and very old (≥80) individuals.
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