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Table 3 Maternal total blood mercury levels (T-Hg) by geophagy practices and ASGM activities (N = 1056)

From: Prenatal arsenic and mercury levels among women practicing geophagy in areas with artisanal and small-scale gold mining activities, Northwestern Tanzania

Mercury concentration

AGSM Community

Groups

Median (IQR/%)

    Practicing geophagy

1.182 (0.83, 1.8)

 

    Not practicing geophagy

1.195 (0.78, 1.90)

    Working in mine (overall)

    Working in mine (geophagy)

1.14 (0.79, 1.81)

1.09 (0.81, 1.67)

    Working in mining (no geophagy)

1.2 (0.77, 1.9)

    Not working in mine (Overall)

1.44 (0.9, 2.36)

    Not working in mine (geophagy)

1.765 (1.01, 3.08)

    Not working in mine (no geophagy)

1.21 (0.83, 1.835)

 

Group comparison

    Comparison

Median difference

Test statistic

p-value

    Geophagy practices vs. non-geophagy

0.68

χ2 = 12.297

< 0.0001

    Working in mine vs. not working in mine

0.093

χ2 = 4.473

0.1068

Non-AGSM Community

    Practicing geophagy

1.28 (0.86, 1.58)

 

    Not practicing geophagy

0.78 (0.32, 0.9825)

    Working in mine (overall)

0.63 (0.32,1.11)

    Working in mine (geophagy)

1.1 (0.85, 1.45)

    Working in mining (no geophagy)

0.6 (0.312, 0.98)

    Not working in mine (Overall)

0.93 (0.47, 1.51)

    Not working in mine (geophagy

1.49 (1.0725, 1.53)

    Not working in mine (no geophagy)

0.655 (0.43, 0.66)

Group comparison

    Geophagy practices vs. non-geophagy

0.68

12.296

< 0.0001