Fig. 3

Accumulative all-cause mortality by serum B12, B12 supplement use and B12 dietary intake from foods

A: Serum vitamin B12. B: Vitamin B12 supplements. C: Vitamin B12 intake from foods. Y-axis shows the absolute risk of cumulative mortality rate (%). P value was estimated by log-rank test. The X-axis shows the follow-up period (years). Proportional hazards assumptions were met by B and C but not by A