http://www.mdlinx.com/internal-medicine/top-medical-news/article/2016/01/22/12
UAB Medicine
A
first–of–its–kind study found that young blacks, age 45, are at a three
times greater risk of having a first stroke than their white
counterparts. However, they may not be at a higher risk for the second
stroke. George Howard, DrPH, a professor in the UAB School of Public
Health, recently published key findings from his ongoing research of the
Reasons for Geographic and Racial Differences in Stroke Study in
Neurology, the journal of the American Academy of Neurology. “The
interaction between black race and age appears to be remarkably
different for the risk of first versus second stroke,” said Howard,
principal investigator for the REGARDS Study. “Race has little impact in
the risk for a second stroke.” More than 29,682 people are enrolled in
the REGARDS Study. Of those, 2,993 people had a history of stroke at
their first evaluation, with 301 of them having a second stroke. Of the
26,689 people who did not have a stroke previous to the study, 818
people experienced a first–time stroke during the study. Howard looked
at the relationship between blacks and whites who had had a stroke, and
blacks and whites who have not had a stroke, to see if there is a
relationship between having a stroke and the person’s race. Black
participants age 45 who have never had a stroke are 2.7 times more
likely to have a stroke than are white participants at age 45. By age
85, there is no difference in stroke risk for the two races. Also, race
did not appear to increase second stroke risk for black participants in
relation to white participants at any age. Overall, blacks are at a
higher risk of having a stroke; but this rate appears to be declining.
Whites are also seeing a decline in the risk of having a stroke; but the
rate is decreasing more rapidly in whites, increasing the disparity
between the two races. The additional strokes in blacks are associated
with an estimated cost of $5.2 billion each year, and this work may help
doctors know where to focus their efforts to reduce the disparity in
stroke risk, as well as to reduce these extra costs.
No comments:
Post a Comment