Intelligence and relative risks of disability pension 1986–2009 in the working population, hazard ratios (HRs) and 95% confidence intervals (CI) associated with a one point decrease on the stanine intelligence scale.

aAdjusted for cohort.bAdjusted for cohort, father’s education, and school plans.cAdjusted for cohort, father’s education, school plans, and education.dAdjusted for cohort, father’s education, school plans, education, and physical demands.eAdjusted for cohort, father’s education, school plans, education, psychological demands, and work control.fAdjusted for cohort, father’s education, school plans, education, physical demands, psychological demands, and work control.gAdjusted for cohort, father’s education, school plans, physical demands, psychological demands, and work control.Intelligence and relative risks of disability pension 1986–2009 in the working population, hazard ratios (HRs) and 95% confidence intervals (CI) associated with a one point decrease on the stanine intelligence scale.