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Mean FMR values for each mother/newborn pair related to the level of prenatal airborne PAH exposure (in tertiles)
| Prenatal airborne B[a] level | FMR | 95%Confidence Interval | |
|---|---|---|---|
| <=1.15 ng/m3 | 1.10 | 0.99 | 1.21 |
| 1.16 – 5,69 ng/m3 | 1.15 | 1.03 | 1.28 |
| >5.69 ng/m3 | 1.28 | 1.13 | 1.43 |
| Total | 1.18 | 1.10 | 1.25 |
Non-paranetric trend z = 1.99, p = 0.047
