Table 2 Exposure to High Magnetic Fields (MFs) During Pregnancy and the Risk of Miscarriage.

From: Exposure to Magnetic Field Non-Ionizing Radiation and the Risk of Miscarriage: A Prospective Cohort Study

99th Percentile MF Level Total N Miscarriage N (%) cHR (95% CI) aHRa (95% CI)
Among all participants
Lowest quartile 219 36 (16.4%) Ref Ref
Higher quartiles 694 164 (23.6%) 1.43 (1.00–2.06) 1.48 (1.03–2.14)
MF measured on typical days
Lowest quartile 106 11 (10.4%) Ref Ref
Higher quartiles 347 84 (24.2%) 2.46 (1.31–4.62) 2.72 (1.42–5.19)
MF measured on non-typical days
Lowest quartile 113 25 (22.1%) Ref Ref
Higher quartiles 347 80 (23.1%) 1.02 (0.65–1.62) 1.08 (0.67–1.73)