Fig. 3

Begg’s funnel plot of 18 included studies of the effect of ANC visits on neonatal death; the horizontal line in the plot refers to the natural logarithm of effect estimate, and the vertical line refers the expected 95% confidence intervals
Begg’s funnel plot of 18 included studies of the effect of ANC visits on neonatal death; the horizontal line in the plot refers to the natural logarithm of effect estimate, and the vertical line refers the expected 95% confidence intervals