Table 2.

Changes in birth weight (g) associated with a 1-μg/L increase in simulated plasma PCB‑153 levels from 250,000 Monte Carlo simulations.

Time	β (95% CI)a
Maternal plasma
Conception	3.75 (–1.03, 8.53)
1st month	–2.54 (–7.01, 1.94)
2nd month	–7.79 (–11.99, –3.60)
3rd month	–12.22 (–16.17, –8.27)
4th month	–16.06 (–19.79, –12.34)
5th month	–19.49 (–23.01, –15.97)
6th month	–22.49 (–25.83, –19.16)
7th month	–25.24 (–28.42, –22.07)
8th month	–27.71 (–30.73, –24.69)
Delivery	–29.75 (–32.62, –26.88)
Cord plasma
Delivery	–117.55 (–129.31, –105.79)
aβ and 95% CI were estimated from linear regression models unadjusted for gestational weight gain.