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25-Hydroxyvitamin D quartiles (Q) and cardiovascular disease events at followup*
| No. of events | HR | 95% CI | |
|---|---|---|---|
| Q2 | 13 | 1.15 | 0.46, 2.84 |
| Q3 | 5 | 0.68 | 0.21, 2.13 |
| Q4 | 5 | 0.63 | 0.20, 1.97 |
Q1 is the referent quartile, with 9 events. HR = hazard ratio; 95% CI = 95% confidence interval.
