Predicting the Grade of Prostate Cancer Based on a Biparametric MRI Radiomics Signature

Table 2

The baseline characteristics of selected patients in the training and test cohorts.

Characteristics	Training cohort (n = 98)			Test cohort (n = 44)
	High-grade PCa (n = 70)	Low-grade PCa (n = 28)	value	High-grade PCa (n = 31)	Low-grade PCa (n = 13)	value
Mean age (y)	73.19 ± 8.56	72.11 ± 7.58	0.562	74.77 ± 8.245	72.46 ± 8.353	0.403
Median PSA (ng/ml)	16.47 (IQR:8.21–61.78)	8.28 (IQR:6.36–14.03)	<0.05	15.3481 (IQR 8.28–62.1)	8.81 (IQR:6.27–14.41)	<0.05
Median PSAD (ng/mL/g)	0.15 (IQR:0.08–0.17)	0.15 (IQR:0.07–0.14)	0.76	0.20 (IQR:0.08–0.28)	0.18 (IQR:0.11–0.21)	0.7
Location
PZ	25	13	<0.05	11	8	0.11
TZ	9	11		3	4
PZ and TZ	36	4		17	1

Date are mean ± SD. IQR, interquartile range; TZ, transition zone; PZ, peripheral zone; PSAD, PSA density.