From: Assessment of the value of the different variants of abnormal digital rectal examination finding in predicting carcinoma of the prostate: a preliminary report of a two-center study
Decade
Frequency
Percent
Valid percent
Cumulative percent
51-60
18
13.7
61-70
42
32.1
45.8
71-80
46
35.1
80.9
Above 80
25
19.1
100.0
Total
131