. Author manuscript; available in PMC: 2017 Apr 11.

Published in final edited form as: Prostate Cancer Prostatic Dis. 2016 Oct 11;20(1):55–60. doi: 10.1038/pcan.2016.41

Table 5.

Multivariable logistic regression analysis of prostate volume (≥ 40 gm) controlling for serum 25-OH D and covariates of prostate volume^a

Characteristic	All Men (n = 571)		Negative Biopsies (N = 197)		Prostate Cancer (N = 374)
Characteristic	OR (95 % CI)	p-value	OR (95 % CI)	p-value	OR (95 % CI)	p-value
Age at enrollment, years	1.06 (1.03, 1.08)	< 0.001	1.12 (1.07, 1.18)	< 0.001	1.05 (1.02, 1.08)	0.003
Serum 25-OH D < 30 ng/ml	1.60 (1.06, 2.41)	0.02	1.72 (0.79, 3.74)	0.17	1.59 (0.96, 2.65)	0.07
5-ARI use, yes	2.98 (1.57, 5.65)	0.001	2.40 (0.90, 6.41)	0.08	2.05 (0.81, 5.20)	0.13

Model controlling for all variables above and season of blood draw; covariates removed from model if p > 0.10;

Abbreviation: 5-ARI = 5-alpha reductase inhibitor, PSA = prostate specific antigen