Table 4. Two by two table analyses of PMS2 levels (in benign and cancer tissue), of total percent Gleason 4/5 and of both combined.

To determine the sensitivity (true positive) and specificity (true negative) of PMS2 alone and in combination with percent Gleason 4/5, a two-by-two table analyses was performed. The resulting percentages are shown above. PMS2 (B): PMS2 levels in benign tissue

Group	Sensitivity	Specificity
PMS2 in Cancer	61%	54%
PMS2 in Benign	72%	58%
% Gleason 4/5	76%	55%
% Gleason 4/5 + PMS2 (B)	88%	48%