Genetic Risk Factors for Longitudinal Changes in Structural MRI in Former Organolead Workers

<table>Effect modification by <i>APOE</i> genotype on relation of change in WML and change in total brain volume for <i>APOE ε</i>3/<i>ε</i>3 (black dots, solid regression line) and <i>ε</i>3/<i>ε</i>4 plus <i>ε</i>4/<i>ε</i>4 groups (triangles, dashed regression line). The slopes of the two lines were different (<i>P</i> &lt; 0.05).</table>

Journal of Aging Research

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Figure 3

Figure 3: Genetic Risk Factors for Longitudinal Changes in Structural MRI in Former Organolead Workers 