Vaccines are not associated with autism: An evidence-based meta-analysis of case-control and cohort studies

Highlights • There was no relationship between vaccination and autism (OR: 0.99; 95% CI: 0.92 to 1.06). • There was no relationship between vaccination and ASD (autism spectrum disorder) (OR: 0.91; 95% CI: 0.68 to 1.20). • There was no relationship between [autism/ASD] and MMR (OR: 0.84; 95% CI: 0.70 to 1.01). • There was no relationship between [autism/ASD] and thimerosal (OR: 1.00; 95% CI: 0.77 to 1.31). • There was no relationship between [autism/ASD] and mercury (Hg) (OR: 1.00; 95% CI: 0.93 to 1.07). • Findings of this meta-analysis suggest that vaccinations are not associated with the development of autism or autism spectrum disorder.