Table 1.

Descriptive statistics of the samples under study

VariableAAM (n = 270)EAM (n = 369)P-value
Age62.76 (6.35)61.74 (6.82)0.054
VariableLevelsAAM (n = 270)EAM (n = 369)P-value
Gleason's grade0.177
≤692 (0.34)139 (0.38)
7 (3 + 4)77 (0.29)122 (0.33)
7 (4 + 3)60 (0.22)61 (0.17)
≥841 (0.15)47 (0.13)
Gleason's grade categorized0.030
Nonaggressive169 (0.63)261 (0.71)
Aggressive101 (0.37)108 (0.29)

NOTE: Age is described as mean and SD, whereas the Gleason's grade variables are presented as number of observations and percentage. The P-values in the table are a result of a test of the difference between races using a t-test for age and a χ2 test for the Gleason's grade variables.