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Occup Environ Med 57:249-257 doi:10.1136/oem.57.4.249
  • Paper

Non-Hodgkin's lymphoma among electric utility workers in Ontario: the evaluation of alternate indices of exposure to 60 Hz electric and magnetic fields

Table 11

Correlation matrix of selected magnetic field metrics among sampled Ontario electric utility workers

GM EF AM EF GM MF AM MF MT TH6 MT TH8 MT TH10 MT TH12 MT TH14
GM EF 1.00
AM EF 0.81 1.00
GM MF 0.24 0.24 1.00
AM MF 0.21 0.25 0.86 1.00
MT TH6 0.10 0.23 0.42 0.36 1.00
MT TH8 0.14 0.23 0.58 0.51 0.74 1.00
MT TH10 0.19 0.30 0.68 0.70 0.42 0.64 1.00
MT TH12 0.24 0.31 0.71 0.85 0.24 0.38 0.69 1.00
MT TH14 0.07 0.08 0.65 0.84 0.13 0.22 0.40 0.67 1.00
  • GM EF=geometric mean electric field; AM EF=arithmetic mean electric field; GM MF=geometric mean magnetic field; AM MF=arithmetic mean magnetic field strength; MT TH6–14=Time (%) spent above magnetic field bins 6,8,10,12, and 14 respectively.

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