Aneurysms of the abdominal aorta. Incidence in blacks and whites in North Carolina
G. Johnson Jr, A. Avery, E. G. McDougal, S. J. Burnham and B. A. Keagy
We examined race and sex relative to the unexpected finding of an abdominal
aortic aneurysm (AAA) at 1,665 autopsies plus 545 abdominal computed
tomographic scans in subjects over the age of 50 years. We compared our
demographic data with those of North Carolina and our hospital to determine
if the data base was representative. White males had a higher incidence
(4.2%) of AAA than any other group of race and sex (1.2% to 1.6%) or
combination of groups. Although whites (2.9%) had a higher incidence than
blacks (1.5%) and males (3.4%) had a higher incidence than females (1.3%),
this can be attributed to the influence of the white male. The demographic
data of the group studied were similar to those of our institution's
admissions and to the North Carolina population. We conclude that (1) there
is an increased incidence of AAA in the white male compared with the white
female, black male, and black female in North Carolina; (2) there is no
difference in the incidence of AAA in the white female, black male, and
black female; (3) race alone may not influence the incidence of AAA as
there was no difference between white and black females.
