摘要：Body mass index (BMI) describes
relative weight for
height and is significantly correlated
with total body fat content.
Differences between adults¡¯ weight
status (as measured by BMI) and
their perceptions of their weight
status show how many and which
individuals are mistaken about
their weight status. A recent
analysis by USDA¡¯s Economic Research
Service found that women
tend to make more accurate selfassessments,
and men and women
often make different types of mistakes
in perceiving weight status.
Mistakes have a systematic component,
and are associated with demographics,
socioeconomic status,
and knowledge and attitudes toward
diet and health.
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