approached significancep = 0.07
Although effect estimates at other time points of MDI were not statistically significant, coefficients were all negative and approached significance at 24 months of age ( p = 0.07).
Although effect estimates at other time points of MDI were not statistically significant, coefficients were all negative and approached significance at 24 months of age ( p = 0.07).
Although individual interaction effect estimates appeared to become stronger over time, the three-way interaction term lead × highest quintile of manganese × time) in the mixed-effects model did not reach statistical significance [β = –0.31 (95% CI: –0.64, 0.02)].