Skip to main content
. Author manuscript; available in PMC: 2009 Jan 5.
Published in final edited form as: Neuroepidemiology. 2003;22(4):239–244. doi: 10.1159/000070565

Table 2.

Univariate comparison of demographic characteristics of cases and controls

All controls (n = 129) Cases with control (n = 92)
 All cases (n = 123)
n p value vs. controls n p value vs. controls
Age, years
Mean 59.2 66.1 0.0001 67.3 0.000002
Median 61 67 69
Range 24-85 33-85 33-92
Male, % 33 61 0.0002 57 0.0005
Race, %
White 85 87 0.49a 78 0.08a
African-American 12 13 20
Other 2 0 2
Unknown 2 0 0
a

p value for white vs. non-white.