Blood Pressure Rates on
Rise Again in U.S.
posted September 08, 2004
The number of American adults with
high blood pressure has climbed to almost one in three over the past decade,
putting more people at risk of a stroke, heart attack or kidney failure.
A little more than a decade ago, the number was closer to one in four. "It's not
surprising because we've seen that Americans are getting fatter, and we know
that blood pressure goes up when people gain weight," said Dr. David Goff, an
epidemiology expert at the Wake Forest University School of Medicine, who was
not involved in the analysis, of Census Bureau and health statistics. About 65
million American adults have high blood pressure - 30 percent more than the 50
million who did in the previous decade, according to the report in Hypertension:
Journal of the American Heart Association.
The report did not specifically examine reasons for the spike, but experts said
the aging American population and the growing proportion of overweight and obese
Americans were probably major contributors.
The risk of hypertension, or high blood pressure, increases with age, excess
weight and lack of physical activity. High blood pressure is defined as 140 over
90 or higher. Blood pressure less than 120 over 80 is generally considered
ideal. People in between these categories are called prehypertensive.
The study found that Americans, either have blood pressure in the high range,
take blood-pressure-lowering medicines or have been told at least twice that
they had high blood pressure.
The new figures are from census data and from a 1999-2000 National Health and
Nutrition Examination Survey, which included 4,531 adults. It estimates that
31.3 percent of Americans have high blood pressure, up from 28.9 percent in the
previous national health report from 1988-94.
Four out of 10 black Americans have high blood pressure, compared with about
three out of 10 Mexican-Americans and whites.
There are no symptoms of high blood pressure. "That's why they refer to it as
the silent killer," said Dr. Larry E. Fields, lead author of the study and an
adviser to the United States assistant secretary for health. So he said healthy
adults should be checked at least every two years.
Only two out of three people who have high blood pressure know that they do, and
only one in three has the condition under control.
Source: Diabetes In Control.com.
September 2004
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