TABLE 3

Bootstrapped Direct and Indirect Effects of Childhood Cognition and ELBW on Income Attainment and Full-Time Employment

Overall IQVerbal IQPerformance IQMathematical AbilitiesAcademic Achievement Abilities
Effect Estimate95% CIEffect Estimate95% CIEffect Estimate95% CIEffect Estimate95% CIEffect Estimate95% CI
Annual personal income attainment models
 Total effect−17 209.95*−25 853.32 to −8566.58−17 209.95*−25 853.32 to −8566.58−17 209.95*−25 853.32 to −8566.58−17 209.95*−25 853.32 to −8566.58−17 209.95*−25 853.32 to −8566.58
 Direct effect of ELBW status on personal income attainment−12 693.97*−22 066.54 to 
−3321.40−13 632.84*−22 584.87 to 
−4680.80−14 118.26*−23 489.43 to 
−4647.10−12 785.86*−21 675.44 to 
−3896.28−14 493.71*−23 079.49 to 
−5907.93
 Indirect effect of cognitive mediator on personal income attainment−4515.98*−9809.60 to 
−730.03−3577.11*−8336.21 to 
−8720.95−3091.68−7443.28 to 
278.46−4424.09*−9012.40 to 
−1403.12−2716.24*−6713.30 to 
−520.61
 Proportion mediated, %a2621182616
Full-time employment models
 Total effect−0.91*−1.69 to −0.13−0.91*−1.69 to −0.13−0.91*−1.69 to −0.13−0.91*−1.69 to −0.13−0.91*−1.69 to −0.13
 Direct effect of ELBW on Full-time employment−0.62−1.46 to 0.22−0.72−1.54 to 0.09−0.67−1.51 to 0.18−0.68−1.51 to 0.15−0.83*−1.62, to −0.03
 Indirect effect of mediator on full-time employment−0.32−0.80 to 0.05−0.23−0.61 to 0.02−0.24−0.71 to 0.12−0.23−0.65 to 0.07−0.09−0.36 to 0.06
 Proportion mediated, %a3525262510
  • a % mediated = ab/c × 100.

  • * Significant effect at the α = .05 level.