Table 4 Association between metal objects and blood chromium/cobalt, stratified by race

Blood chromium

 Non-Hispanic White

  β (95% CI)

0.080 (0.026, 0.134)

0.094 (0.037, 0.150)

0.089 (0.033, 0.146)

  p

0.004

0.001

0.002

 African American

  β (95% CI)

0.043 (0.010, 0.077)

0.040 (0.006, 0.074)

0.038 (0.004, 0.073)

  p

0.012

0.023

0.027

 Non-Hispanic Asian

  β (95% CI)

0.022 (-0.015, 0.059)

0.021 (-0.016, 0.059)

0.027 (-0.012, 0.065)

  p

0.240

0.264

0.175

 Hispanic

  β (95% CI)

0.035 (0.004, 0.066)

0.034 (0.002, 0.065)

0.034 (0.002, 0.066)

  p

0.029

0.035

0.035

Blood cobalt

 Non-Hispanic White

  β (95% CI)

0.124 (0.078, 0.171)

0.110 (0.061, 0.158)

0.104 (0.055, 0.153)

  p

<0.001

<0.001

<0.001

 African American

  β (95% CI)

0.039 (0.014, 0.064)

0.038 (0.013, 0.063)

0.037 (0.012, 0.063)

  p

0.002

0.003

0.004

 Non-Hispanic Asian

  β (95% CI)

0.007 (-0.020, 0.034)

0.016 (-0.011, 0.043)

0.019 (-0.007, 0.046)

  p

0.593

0.240

0.152

 Hispanic

  β (95% CI)

-0.025 (-0.120, 0.070)

-0.022 (-0.119, 0.075)

-0.018 (-0.115, 0.079)

  p

0.609

0.654

0.718