Table 2. Hazard Ratios and 95% CIs of Total and Site-Specific Cancers and Mortality by Randomized Vitamin Da.
Disease outcome | No. of events | HR (95% CI) | P value | |
---|---|---|---|---|
Vitamin D (N = 12 927) | Placebo (N = 12 944) | |||
Confirmed cancer | ||||
Total invasive | 793 | 824 | 0.96 (0.88-1.06) | .47 |
Breast | 124 | 122 | 1.02 (0.79-1.31) | .90 |
Prostate | 192 | 219 | 0.88 (0.72-1.07) | .19 |
Colorectal | 51 | 47 | 1.09 (0.73-1.62) | .67 |
Lung | 74 | 74 | 1.00 (0.73-1.38) | .99 |
Confirmed metastatic cancer of any type | 88 | 111 | 0.80 (0.60-1.05) | .11 |
Total cancer mortality | 154 | 187 | 0.83 (0.67-1.02) | .08 |
Confirmed metastatic cancer or cancer death of any type | 226 | 274 | 0.83 (0.69-0.99) | .04 |
Excluding 1 y | 193 | 235 | 0.82 (0.68-1.00) | .047 |
Excluding 2 y | 147 | 181 | 0.81 (0.66-1.01) | .07 |
Abbreviation: HR, hazard ratio.
Analyses were from Cox regression models that were controlled for age, sex, and omega-3 fatty acid randomization group. Analyses were not adjusted for multiple comparisons. Analyses were done as intention-to-treat over all years of follow-up.