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. 2020 Jul 15;128(7):077003. doi: 10.1289/EHP6394

Figure 3.

Figure 3A and 3B are graphs, plotting OR plus or minus 95 percent CI, ranging from 0.0 to 2.5 in increments of 0.5 and 0.0 to 2.0 in increments of 0.5 (y-axis) across Preterm birth and Small-for-gestational age (x-axis) for Hispanics and Non-Hispanic whites. Figure 3C and 3D are graphs, plotting Mean difference plus or minus 95 percent CI, ranging from negative 5 to 1 in increments of 2 and negative 100 to 60 in increments of 30 (y-axis) across Gestational age (days) and Term birthweight (grams; x-axis) for Hispanics and Non-Hispanic whites.

Estimated associations from models stratified by ethnicity between the number of flares within 5km of maternal residence and (A) the odds of preterm birth, (B) the odds of small-for-gestational age birth, (C) gestational age, and (D) term birthweight, Eagle Ford Shale, Texas, 2012–2015 (N=12,781, Hispanic women and N=8,566 non-Hispanic white women). Full numeric data are provided in Tables S8 and S9. Figures show effect estimates and 95% CIs comparing infants with prenatal exposure to a low (1–9) and high (10–562) number of nightly flare events within 5km of the maternal residence to unexposed infants. All estimates are adjusted for the number of oil and gas wells within 5km, maternal age, nativity, education, prepregnancy BMI, smoking, insurance, parity, high-risk pregnancy, infant sex, prenatal care, year of birth, and season of birth. Models of term birthweight additionally control for gestational age. Red lines indicate the null. Note: BMI, body mass index; CI, confidence interval; OR, odds ratio.