BMI, waist circumference, and waist-to-hip
ratio, whether assessed singly or in combination, do not importantly improve
risk prediction of disease suggests 58 prospective studies
that included 221,934
participants
The result is applicable to people in developed countries and when additional information
is available for systolic blood pressure, history of diabetes, and lipids.
This means that in population-wide
assessment of the risk for heart disease, the established risk factors play a
more important role as compared with factors such as BMI and waist-to-hip
ratio.
Recommendations
regarding the value of clinical measures of adiposity for prediction of heart
disease risk vary
in different national and
international guidelines. While some recommend omission of adiposity measures, others advise formal
inclusion of such measures as risk factors in prediction models. This ambiguity arose due to uncertainties in relation to data from previous
studies. For
example, one large study said that waist-to-hip
ratio was three times more strongly related to risk of heart attack than was
BMI. However, none of the recommendations had been tested by powerful
prospective studies.
There
has been no reliable comparison of the
long-term
reproducibility of BMI, waist circumference, and waist-to-hip ratio according to
the results from this group of large study
The
results of the study published in the Lancet
, stresses the importance of information about blood pressure, history
of diabetes, and cholesterol measures. Authors state that they do not want
to diminish the importance of adiposity as a major modifiable determinant of
cardiovascular disease.
Adiposity
(state of containing fat) is indeed a major risk factor
. Controlling
obesity is important in preventing heart disease. The result of the study is applicable when it comes to population-wide
assessment of the risk of heart disease. When additional information about
blood pressure, history of diabetes, and cholesterol measures, is available on
factors used in standard risk scores,
adiposity
measures alone provide little or no additional information.
The findings rebut the existing
recommendations to adopt baseline waist-to-hip ratio instead of BMI as the
principal clinical measure of adiposity.The long-term reproducibility of BMI has been
found to be superior to that of waist-to-hip ratio (or waist circumference).
Source: The Lancet
Source-Medindia