Blood lead levels in pregnant women referring to midwifery clinic in a referral center in Tehran

Lead e?ects on children and pregnant women are grave, and screening tests would be logical to detect high blood lead levels (BLLs) in early stages. Blood samples were taken from the pregnant mothers who referred to midwifery clinic with further phone interview postdelivery. In 100 patients evaluated, the mean age was 29 ± 5 years (median interquartile range gestational age of 33 [24, 37] weeks). Tere was a signifcant correlation between polluted residential area and median BLL (P = 0.044) and substance exposure (P = 0.02). Te median BLL was signifcantly lower in those without a history of lead toxicity in the family (P = 0.003). Te only factor that could predict the BLL levels lower than 3.2 and 5 µg/dL was living in the nonindustrial area. All pregnant women delivered full?term live babies. Positive history of lead toxicity in the family