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. Author manuscript; available in PMC: 2020 May 1.
Published in final edited form as: Epidemiology. 2019 Nov;30(Suppl 2):S94–S100. doi: 10.1097/EDE.0000000000001095

Table 3.

Adjusted mean changes and their 95% confidence interval for each birth outcome measure per 0.1 ng/mL increase in pollutant concentration

Birthweight (grams) Birth weight z-score Ponderal index (kg/m3) Gestational age (weeks)
M.D. Lower 95% CI Upper 95% CI p value M.D. Lower 95% CI Upper 95% CI p value M.D. Lower 95% CI Upper 95% CI p value M.D. Lower 95% CI Upper 95% CI p value
pp’-DDE 13.5 −0.81 28.0 0.06 0.0002 −0.02 0.02 0.99 −0.0008 −0.01 0.01 0.88 0.03 −0.01 0.07 0.15
PBDE-47 0.3 −9.9 10.5 0.95 −0.01 −0.03 0.007 0.26 0.002 −0.006 0.01 0.60 0.01 −0.02 0.04 0.40
PCB8 13.6 4.3 22.9 0.004 0.007 −0.009 0.02 0.41 0.002 −0.005 0.009 0.54 0.02 −0.01 0.05 0.23
PCB15 6.6 −5.8 19.0 0.30 0.009 −0.01 0.03 0.42 −0.001 −0.01 0.008 0.84 0.006 −0.03 0.05 0.75
PCB18 −1.0 −30.6 28.7 0.95 −0.03 −0.07 0.009 0.14 −0.002 −0.02 0.01 0.79 0.007 −0.06 0.07 0.82
PCB28 2.3 −20.4 24.9 0.84 −0.004 −0.04 0.03 0.81 −0.001 −0.02 0.01 0.86 0.03 −0.03 0.09 0.35
PCB52 38.6 5.2 72.0 0.02 0.03 −0.04 0.09 0.45 0.007 −0.02 0.04 0.61 0.07 −0.04 1.07 0.21
PCB70 43.4 −3.7 90.5 0.07 −0.003 −0.08 0.08 0.95 0.031 −0.004 0.07 0.08 1.00 −0.05 2.05 0.19
PCB95 36.4 5.6 67.3 0.02 0.004 −0.05 0.06 0.89 0.005 −0.02 0.03 0.70 0.06 −0.03 1.05 0.18
PCB101 25.6 −5.5 56.7 0.11 −0.007 −0.06 0.04 0.79 0.009 −0.01 0.03 0.41 0.08 −0.02 1.07 0.11
PCB138 11.9 −15.4 39.1 0.39 −0.009 −0.05 0.03 0.70 0.006 −0.01 0.02 0.51 0.04 −0.04 1.02 0.23
PCB153 10.3 −13.5 34.0 0.40 −0.005 −0.04 0.03 0.82 0.005 −0.02 0.03 0.65 0.01 −0.07 0.08 0.90

Adjusted for maternal age, pre-pregnancy BMI, race/ethnicity, smoking, education, parity, and infant sex

M.D., mean difference