Odds ratios (95% confidence intervals) of prostate cancer by quartile of baseline serum 25-hydroxyvitamin D (ng/mL)
| Quartile 1 | Quartile 2 | Quartile 3 | Quartile 4 | Ptrend | |
|---|---|---|---|---|---|
| Cases/controls | 83/75 | 69/73 | 57/74 | 87/75 | |
| Range, 25-hydroxyvitamin D (ng/mL) | ≤14.79 | 14.80-18.82 | 18.83-23.98 | >23.98 | |
| Unadjusted odds ratio (95% confidence interval) | 1.00 | 0.81 (0.45-1.47) | 0.57 (0.30-1.06) | 0.87 (0.49-1.57) | 0.99 |
| Adjusted* odds ratio (95% confidence interval) | 1.00 | 0.88 (0.48-1.61) | 0.59 (0.31-1.11) | 0.89 (0.49-1.62) | 0.97 |
↵* Adjusted for age at randomization, body mass index, and pack-years of smoking.