Mean IQ scores, and difference between exposed and unexposed IQ scores by prenatal maternal bereavement*§.

*adjusted for maternal and paternal age at birth, income, residence (urban/rural), maternal education at birth, gestational age, and birth weight.‡traumatic deaths classified as deaths due to: unexpected causes, motor vehicle accidents, suicide, other accidents, violence, and death from other causes.§observations with missing values are not included in the adjusted analyses.