FIGURE 1—

Pooled estimates of coronary heart disease mortality rates for fish consumption once per week vs less than once per month.

Note. RR = relative risk. Squares indicate adjusted RR in each study. Size of the square is proportional to the percentage weight of each study in the meta-analysis; horizontal line represents 95% confidence interval. Studies are ordered by year of publication. The shaded diamond indicates meta-analysis data demonstrating that the risk of cardiac heart disease mortality (e.g., death from arrhythmia, myocardial infarction) in a group of patients that eat fish once a week is 15% less (0.85; 95% confidence interval [CI] = 0.76, 0.96) than in a group of patients who eat fish less than once a month. The unshaded diamond indicates pooled RR and 95% CI.

Source. He et al.¹⁰