Paternal Smoking and Risk of Childhood Acute Lymphoblastic Leukemia: Systematic Review and Meta-Analysis
Figure 2
Begg’s funnel plots of the log odds ratio (ln(OR)) versus the standard error of the log odds ratio (s.e of ln(OR)) of the studies used in the meta-analysis. Random-effect model OR estimates were used in the graphs. The sizes of the circles indicate the inverse-variance weight of the corresponding study.
