Forty studies met the predetermined criteria for inclusion. a analysis. For each exposure

Small for gestational ageAnemia in the baby

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Design of autism perinatal neonatal risk factor study:

and Neonatal Risk Factors for Autism Spectrum Disorders

Wall Street Journal Best Seller Dr. M's Seven X Plan for Digestive HealthWhile autism is believed to be a multifactorial disorder with role for both genetics and environment, the precise mechanisms remain mired in debate. Epidemiologic studies help shed light on the various combination of factors that may be involved. However, the data has thus far been mixed.

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Summer birth

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Jaundice (Amin et al recently confirmed total bilirubin level as a rsk factor except in pre term infants.)

Low birth weight

A summary effect estimate was calculated Women Canada Goose Montebello Parka Red Nz Online for each exposure or potential risk factor. Meta regression was carried out seek methodological factors that could explain between study variability.

The investigators analyzed over 60 potential perinatal and neonatal factors. They identified the following factors associated with autism:Baby birth trauma, low 5 minute Apgar score

The investigators studied a variety of databases including PubMed, Embase, and PsycInfo and looked for studies seeking perinatal and neonatal risk factors associated with autism spectrum disorders.

Dr. Gardener and colleagues from the Department of Epidemiology, Harvard School of Public Health, Boston, MA conducted a metaanalysis of the studies on the effect of perinatal and neonatal risk factors that contribute to risk for autism. These investigators published their findings in the journal Pediatrics 2011.

Blood group ABO or Rh incompatibility