Fig. 3

Multivariable HRs and 95% CIs of combined effect of coffee and tea consumption for all-cause and cause-specific mortality in subgroups. Multivariable HRs for all-cause mortality among study participants who consumed combined < 1–2 cups/day of coffee and 2–4 cups/day of tea versus those who drink neither coffee nor tea were adjusted for sex, age, ethnicity, education levels, BMI, smoking status, alcohol intake frequency, physical activity, dietary pattern, general health status, hypertension, diabetes, and depression. *P for interaction between baseline characteristics and combined consumption of coffee and tea with all-cause or cause-specific mortality. The risk estimates for other categories of combined consumption of coffee and tea are shown in Table S3-S12 in the Supplementary Appendix