Figure 3.

Standardised mean difference (SMD) for diastolic blood pressure and dietary counselling in pregnancy. The overall effect size was estimated by SMD. The black dot represents the point estimate, and square size the weight of each study in the meta‐analysis and the horizontal lines represent the 95% confidence interval (CI). The vertical solid line represents the line of no effect. The diamond represents the overall pooled estimate effect of dietary counselling on diastolic blood pressure.