Skip to main content

Table 2 Age-adjusted associations of breastfeeding and autistic disorder for children aged 2–18 years.

From: Breastfeeding, infant formula supplementation, and Autistic Disorder: the results of a parent survey

Variable Odds Ratio (95% Confidence Interval) p value
No Breastfeeding 2.48 (1.42 – 4.35) 0.001
Breastfeeding <2 months 1.70 (1.00 – 2.88) 0.050
Breastfeeding 2–6 months 1.27 (0.75 – 2.14) 0.373
Breastfeeding >6 months reference   
Limited to cases with reported regression in development
No Breastfeeding 1.95 (1.01 – 3.78) 0.048
Breastfeeding <2 months 1.84 (0.98 – 3.44) 0.057
Breastfeeding 2–6 months 1.59 (0.86 – 2.96) 0.141
Breastfeeding >6 months reference