Figure 2
From: Coffee consumption and risk of cancers: a meta-analysis of cohort studies
Summary RRs of bladder cancer for coffee drinkers versus non/lowest drinkers from included studies. Squares represent study-specific relative risk estimates (size of the square reflects the study-specific statistical weight, that is, the inverse of the variance); horizontal lines represent 95% CIs; diamonds represent summary relative risk estimates with corresponding 95% CIs.