. 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 4.

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, 1.09)	< 0.001	1.12 (1.07, 1.18)	< 0.001	1.05 (1.02, 1.08)	0.002
Serum 25-OH D, ng/ml	0.97 (0.96, 0.99)	0.001	0.97 (0.94, 0.99)	0.03	0.97 (0.95, 0.99)	0.02
5-ARI use, yes	2.91 (1.53, 5.54)	0.001	2.31 (0.86, 6.16)	0.95	1.97 (0.77, 5.03)	0.15

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