Num Attribute description Attribute’s Values Mean StandardDeviation 1 Age 45-91 69 9.89 2 Total PSA 0.1-100 13 17.15 3 Free PSA 0.07-49.9 2.84 4.74 4 Ratio 0.018-2.9 0.2549 0.2 *N=360 observations including 181 malignant and 179 benign.

Table 1: Pro Disease Database description of attributes.