Table 2. Maternal Exposure to MF Nonionizing Radiation During Pregnancy and Risk of ADHD in Offspring.
| MF at 90th percentile | ADHD, No. (%) | aHR (95% CI)a | |
|---|---|---|---|
| Yes | No | ||
| Low (n = 572)b | 12 (2.1) | 560 (97.9) | 1 [Reference] |
| High (n = 882)c | 49 (5.6) | 833 (94.4) | 2.01 (1.06-3.81) |
Abbreviations: ADHD, attention-deficit/hyperactivity disorder; aHR, adjusted hazard ratio; MF, magnetic field.
a
Adjusted for maternal age, race/ethnicity, educational level, prenatal smoking and alcohol use, prepregnancy body mass index, and sex of offspring.
b
The level of MF nonionizing radiation exposure is lower than 1.3 mG.
c
The level of MF nonionizing radiation exposure is 1.3 mG or higher.