Figure 2.
Indirect, direct, and total effects of prenatal exposure to inorganic arsenic in drinking water (A1–A3) and maternal toenails (B1–B3) on birthweight considering gestational age a mediator, adjusting for maternal age, education, number of past pregnancies, secondhand smoking, enrollment BMI, blood hemoglobin level and infant gender. Solid black lines sorrounded by shadded areas represent effect estimates and 95% confidence intervals across birthweight percentiles. Horizontal blue dashed lines show reference values.