Table 2.

Associations between Gleason Score and volumes of automatically segmented suspicious regions of interest (ROIs).

PZa	Statistics	Otsu	40%	50%	60%	70%
10%	Spearman’s ρ	0.22	0.14	0.25	0.34	0.43
	p-value	0.155	0.307	0.087	0.031	0.086
	PZ/TZ/rejected (N)	45/15/0	53/7/0	48/9/3	40/12/8	17/11/32
15%	Spearman’s ρ	0.19	0.13	0.27	0.39	0.43
	p-value	0.230	0.364	0.096	0.022	0.086
	PZ/TZ/rejected (N)	40/20/0	51/9/0	40/17/3	35/17/8	17/11/32
20%	Spearman’s ρ	0.14	0.14	0.23	0.33	0.21
	p-value	0.420	0.353	0.166	0.073	0.443
	PZ/TZ/rejected (N)	34/26/0	46/14/0	38/19/3	31/21/8	15/13/32

PZ, peripheral zone; TZ, transition zone.

^aThreshold (%) of the suspicious ROIs in PZ.