Table 6.

Comparison of current series with published literatures.

Studies	Rate for high grade disease∗	P value	Parentage of cancer cases†	P value‡
Current series	54.3% (132/243)	–	125/366 (34.2%)	–
Kawahara et al [22]	20.6% (71/344)	.00	357/810 (44.1%)	.00
Huang et al[23]	65.9% (209/317)	.01	30.5% (50/164)	.43
Oh et al[24]	15% (166/1106)	.00	No data available	–
Gokce et al[25]	31.7% (194/611)	.00	28.3% (1106/3913)	.02

^∗Number of high grade cases / total number of PCa cases in current series and listed literatures. High grade disease definition: Gleason 7 and above.

^†Number of PCa cases / total number of cases with PSA between 4 to 10 ng/mL in current series and listed literatures.

^‡P values were calculated compared listed literatures to current series using Chi-Squared test.