Figure 2.

Joint effect of riboflavin and folate intake in relation to CVD mortality and all-cause mortality. Model adjusted for age, gender, race, physical activity, education, smoking, alcohol drinking, intake of energy and fat, metabolic syndrome, depression, and short sleep. Individuals with high intake of folate (quartile 3 and 4) and quartile 4 of riboflavin were used as the reference group. The number of individuals in each group was as follows: high folate (Q1–Q4 of riboflavin, 295, 997, 1703, 2245); low folate (2327, 1622, 916, 375).