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. 2002 Oct 14;1:2. doi: 10.1186/1476-069X-1-2

Table 6.

Estimated effects of a ten-fold increase in exposure to mercury and PCB for different values of the PCB measurement error variance.

log(PCB)
error variance		 PCB
error cv		 Motor Function Verbal Function
Mercury PCB Mercury PCB Overall test
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0 0 -1.433 0.027 0.664 0.363 -1.538 0.025 -0.198 0.799 0.012
0.01 0.23 -1.475 0.030 0.740 0.367 -1.523 0.034 -0.261 0.794 0.017
0.02 0.33 -1.534 0.034 0.853 0.362 -1.508 0.048 -0.257 0.796 0.025
0.04 0.46 -1.707 0.052 1.180 0.364 -1.430 0.120 -0.402 0.771 0.064

The last column gives the p-value in the overall likelihood ratio test for no effects of mercury exposure. Information from in-complete observations was taken into account using missing data analysis.