Table 2.

Multivariable analysis of factors associated with estimation of prostate volume using MRI or TRUS volume

Covariate	MRI			TRUS
	Co-efficient	(95% CI)	p value	Co-efficient	(95% CI)	p value
BMI	0.105	(−0.004–0.215)	0.060	0.072	(−0.063–0.207)	0.296
Height	0.098	(−0.091–0.287)	0.310	−0.078	(−0.317–0.162)	0.523
Weight	0.010	(−0.077–0.096)	0.830	0.019	(−0.089–0.128)	0.729
Median lobe	−8.123	(−12.766–−3.840)	0.001	−8.150	(−13.880– −2.421)	0.005
pT3 (vs. pT2)	−1.789	(−4.082–0.504)	0.126	−2.169	(−4.989–0.650)	0.131
Gleason sum (6 vs. 7 vs. 8–10)	1.157	(−4.082–0.504)	0.084	0.725	(−0.895–2.344)	0.380
Preoperative PSA	0.088	(−0.043–0.218)	0.187	0.115	(−0.049–0.279)	0.168
Year of MRI/TRUS	0.465	(−0.052–0.981)	0.078	0.062	(−0.574–0.699)	0.847

BMI: body mass index; CI: confidence interval; MRI: magnetic resonance imaging; PSA: prostate-specific antigen; TRUS: transrectal ultrasound.