BCG Vaccination in Early Childhood and Risk of Atopic Disease: A Systematic Review and Meta-Analysis

<div>Forest plot of the association between BCG vaccination and asthma. Random effects model forest plot shows ORs and 95% CIs for the association between BCG vaccination and asthma. OR = 0.73, 95% CI 0.58 to 0.92. M–H = Mantel–Haenszel; OR = odds ratio; CI = confidence interval.</div>

Canadian Respiratory Journal

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Figure 3: BCG Vaccination in Early Childhood and Risk of Atopic Disease: A Systematic Review and Meta-Analysis 