Paediatric and Perinatal Epidemiology · 2013 · 21 citations · 33 references
Differences in patterns of association between maternal parity and ASD subtypes may indicate varying contributions of specific environmental factors to risk; however, differences in diagnosis or in treatment seeking for childhood behavioural problems cannot be ruled out, particularly for higher functioning cases.
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Recurrence Risk for Autism Spectrum Disorders: A Baby Siblings Research Consortium Study
Sally Ozonoff, Gregory S. Young, Alice S. Carter et al. · PEDIATRICS · 2011 · 1.4K citations · Full text
Perinatal Risk Factors for Infantile Autism
Christina M. Hultman, Pär Sparén, Sven Cnattingius · Epidemiology · 2002 · 563 citations
Risk of pre-eclampsia in first and subsequent pregnancies: prospective cohort study
Sengwee Toh, Sven Cnattingius · BMJ · 2009 · 545 citations · Full text