Figure 3
From: Mercury in human brain, blood, muscle and toenails in relation to exposure: an autopsy study
Amalgam surfaces related to I-Hg in blood and brain, and total-Hg in pituitary and thyroid. Number of amalgam surfaces related to concentration of (a) inorganic Hg in blood (CI-Hg-Blood; μg Hg/L), (b) inorganic Hg in occipital cortex (CI-Hg-Brain; μg Hg/kg), (c) total-Hg in pituitary (CPituitary; μg Hg/kg) and (d) total-Hg in thyroid (CThyroid; μg Hg/kg). The equations for the regression lines were (a) CI-Hg-Blood = 0.12 × [number of amalgam surfaces] + 0.79, (correlation coefficient 0.433, n = 29, p = 0.019), (b) CI-Hg-Brain = 0.15 × [number of amalgam surfaces] + 4.4, (correlation coefficient 0.550, n = 29, p = 0.002), (c) CPituitary = 6.0 × [number of amalgam surfaces] + 25.5, (correlation coefficient 0.541, n = 29, p = 0.002), and (d) CThyroid = 0.49 × [number of amalgam surfaces] + 13.7, (correlation coefficient 0.530, n = 27, p = 0.004).