The odds [ratio] of prostate cancer for eqch quartile of 25-D and 1,25-D compared to their lowest quartiles.

Men ≥ 57 years old at baseline. N=91 pairs (57 is median age; 30 black, 61 white) (Unadjusted for other variables, implied)

Quartile of 1,25-D (pg/mL)
Quartile of 25-D (ng/mL) 1 (5–26) 2 (27–32) 3 (33–39) 4 (40–81)
1 (3–18) 1.00 0.22 P<.05 0.05 P<.05 0.01 P<.05
2 (19–23) 0.79 0.23 0.07 P<.05 0.02 P<.05
3 (24–28) 0.62 0.24 0.09 0.03 P<.05
4 (29–52) 0.48 0.24 0.12 0.06

P=.0001 by (unadjusted) logistic regression (P=.98 for men<57 at serum storage).

From: Appendix C, Evidence Tables: A-E

Cover of Vitamin D and Calcium
Vitamin D and Calcium: A Systematic Review of Health Outcomes.
Evidence Reports/Technology Assessments, No. 183.
Chung M, Balk EM, Brendel M, et al.

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