Effect of suboptimal breast-feeding on occurrence of autism: a case-control study
Yahya M Al-Farsi1, Marwan M Al-Sharbati, Mostafa I Waly
1Department of Family Medicine and Public Health, Sultan Qaboos University, Al-Khoudh, Sultanate of Oman. ymfarsi@squ.edu.om
Objective:
To evaluate the association between suboptimal breast-feeding practices and autism spectrum disorders (ASDs).
Methods:
A case-control study was conducted in 102 ASD cases and 102 matched healthy controls.
Results:
Based on adjusted odds ratios from logistic regression models, ASD was found to be associated with the late initiation of breast-feeding (odds ratio 1.48, 95% confidence interval 1.01-3.1), a non-intake of colostrum (odds ratio 1.7, 95% confidence interval 1.03-4.3), prelacteal feeding, and bottle-feeding. The risk of ASD was found to decrease in a dose-response fashion over increasing periods of exclusive breast-feeding (P for trend = 0.04) and continued breast-feeding (P for trend = 0.001).
Conclusion:
The study indicates that increased ASD risk is generally associated with suboptimal breast-feeding practices.
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