Table 3. Univariate analysis of factors predicting tumour upgrading.

	Tumour upgrading		P-value
	No	Yes
PSA
⩽10	77	17	0.8
>10	6	1
⩽4	20	1	0.05
>4	63	17
PSAd
⩽0.15	58	8	0.03
>0.15	25	10
PSAV
⩽0.75	56	7	0.03
>0.75	27	11
Positive cores
<3	74	16	0.9
⩾3	9	2

Abbreviation: PSAd, PSA density; PSAV, PSA velocity.