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. 2019 Jan 29;16(3):383. doi: 10.3390/ijerph16030383

Figure 4.

Figure 4

Results from prospective studies investigating cancer mortality in relation to 25-hydroxyvitamin D (25(OH)D) concentration: (a) comparing low versus high concentrations categorically; (b) continuously, for a decrement in 25(OH)D concentration; (c) low (black) and high (blue) concentrations compared with levels in the middle of the 25(OH)D distribution. The squares represent hazard ratios and horizontal lines are the 95% confidence intervals. Studies that estimated odds ratios or relative risks are denoted by * and ^, respectively. Axes are scaled differently in each panel to maximize the visualization of effect estimates.