Assessment of the Role of IQ in Associations Between Population Density and Deprivation and Nonaffective Psychosis.

ABSTRACT:

Importance

Being born or raised in more densely populated or deprived areas is associated with increased risk of nonaffective psychosis in adulthood, but few studies to date have examined the role of general cognitive ability in these associations.

Objective

To investigate whether lower IQ contributed to the association between population density or deprivation and nonaffective psychosis (mediation) and whether these associations were stronger in people with lower IQ (effect modification).

Design, setting, and participants

This prospective cohort study evaluated a population-based sample of men born in Sweden from January 1, 1982, to December 31, 1988, and conscripted into military service at 18 years of age. Data were collected from January 1, 1982, to December 31, 2

SUBMITTER: Lewis G 

PROVIDER: S-EPMC7066518 | biostudies-literature | 2020 Jul

REPOSITORIES: biostudies-literature