Table 2.

Relationship between the highest GG based on the prostate needle core biopsy finding and the final GG based on the surgical specimen finding

	Cases with GG1 based on the surgical specimen finding	Cases with GG2 based on the surgical specimen finding	Cases with GG3 based on the surgical specimen finding	Cases with GG4 based on the surgical specimen finding	Cases with GG5 based on the surgical specimen finding
Highest GG1 based on the prostate needle core biopsy finding (n = 15)	2	10	3	0	0
Highest GG2 based on the prostate needle core biopsy finding (n = 58)	0	41	14	3	0
Highest GG3 based on the prostate needle core biopsy finding (n = 48)	0	12	27	6	3
Highest GG4 based on the prostate needle core biopsy finding (n = 75)	0	8	30	24	13
Highest GG5 based on the prostate needle core biopsy finding (n = 14)	0	1	1	1	11
Adjusted residual (chi-square test)	-2.9	3.7	1	-3.9	2.2

Abbreviations: SD, standard deviation; PSA, prostate-specific antigen; GG, grade group

Patient background and detailed biopsy information is included for 1325 cases, excluding nine cases other than adenocarcinoma from the total 1334 cases