Figure 6. Meta-analyses between coffee intake and risk of renal cancer and bladder cancer.
Relative risks of renal cancer (A) and bladder cancer (B) associated with coffee intake. Squares represent study-specific relative risk estimates (size of the square reflects the study-specific statistical weigh, that is, the inverse of the variance); horizontal lines represent 95% CIs; diamonds represent summary relative risk estimates with corresponding 95% CIs.