Cohort descriptions are provided in Table 1, including a description of the mean (continuous variables) and prevalence rates (dichotomous variables) for all outcome measures. Due to different operationalizations and sample compositions in the four cohorts, most descriptives cannot be directly compared. In the association analyses, we controlled for age, sex, and education level, and we conducted meta‐analysis either on per‐sample Z‐scores for the association (in MAGMA) or on standardized regression weights (in METAL) to control for sample differences.
