Pre- and perinatal risk factors for autism spectrum disorder in a New Jersey cohort

Area of Science:

• Perinatal health
• Neurodevelopmental disorders
• Autism Spectrum Disorders (ASD) etiology

Background:

• Autism Spectrum Disorders (ASD) are complex neurodevelopmental conditions with multifactorial causes.
• Understanding the role of prenatal and perinatal factors is crucial for identifying potential risk and protective elements.
• Previous research suggests a potential link between certain perinatal complications and ASD, but more data is needed.

Purpose of the Study:

• To evaluate the prevalence of specific pre- and perinatal risk factors in a cohort of children diagnosed with Autism Spectrum Disorders (ASD).
• To compare these prevalence rates with those of the general New Jersey population.
• To investigate the association between clustering of risk factors and maternal/paternal age, and the risk of ASD.

Main Methods:

• A cohort of 268 individuals with ASD was studied.
• Birth histories were collected using a self-administered questionnaire.
• Prevalence rates of seven perinatal risk factors were compared between the ASD cohort and New Jersey state rates.

Main Results:

• The ASD cohort exhibited significantly higher rates for seven perinatal risk factors: advanced maternal age (≥35 years), low birth weight, multiple gestation, prematurity, vaginal bleeding, prolonged labor, and hypoxia.
• No significant differences in the clustering of risk factors were observed across maternal and paternal age groups.
• Older mothers in the ASD cohort showed a higher risk of infant hypoxia.

Conclusions:

• Multiple perinatal risk factors are associated with an increased risk of Autism Spectrum Disorders (ASD) in offspring.
• These findings support the hypothesis that environmental influences, in conjunction with genetic predispositions, contribute to the etiology of ASD.
• Targeted interventions and further research into perinatal complications may be beneficial for ASD prevention and management.