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Q Do perinatal factors (birth weight, gestational age, maternal age, maternal parity, parental occupation) increase risk of suicide?
Retrospective cohort study.
Mean 25.1 years.
General population, Scotland; 1969–2003.
1 061 830 people born between 1969 and 1986, identified from electronic Scottish Morbidity Record maternity records. Exclusions: death before mother discharged from hospital; multiple pregnancies (because of likely over-representation of low birth weight and preterm infants in this group); death before age of 10 years; or recorded details thought to be incorrect (gestational age at birth <26 weeks or >45 weeks; maternal age at birth <15 years or >50 years, or birth weight <750 g or >6000 g).
Birth weight, …
For correspondence: Dr D V Riordan, New Craigs Hospital, Leachkin Road, Inverness IV3 8NP, UK;
Source of funding: Scottish Chief Scientist Office.
Competing interests: None declared.
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