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Low-level lead exposure and infant development in the first year.
Neurobehav Toxicol Teratol. 1986 Mar-Apr; 8(2):151-61.NT

Abstract

The developmental impact of prenatal and early postnatal low-level lead exposure was assessed in a prospective study of 249 middle and upper-middle class infants with umbilical cord blood lead levels in the range currently considered "normal." Infants were classified into three exposure groups: "low" (less than 3 micrograms/dl), "mid" (6 to 7 micrograms/dl), and "high" (greater than or equal to 10 micrograms/dl). At 6 and 12 months, the lead concentration of capillary blood was measured, and the Bayley Scales of Infant Development administered. At both ages, Mental Development Index scores, adjusted for confounding, were inversely related to infants' umbilical cord blood lead levels. The difference between the mean adjusted scores of the infants in the low and high cord blood lead groups was 5.8 points at 6 months and 7.3 points at 12 months. At neither age were scores significantly related to postnatal blood lead levels. Prenatal exposure to lead levels relatively common among urban populations appear to be associated with less favorable development through the first year of life.

Authors

No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, U.S. Gov't, P.H.S.

Language

eng

PubMed ID

2423895

Citation

Bellinger, D, et al. "Low-level Lead Exposure and Infant Development in the First Year." Neurobehavioral Toxicology and Teratology, vol. 8, no. 2, 1986, pp. 151-61.
Bellinger D, Leviton A, Needleman HL, et al. Low-level lead exposure and infant development in the first year. Neurobehav Toxicol Teratol. 1986;8(2):151-61.
Bellinger, D., Leviton, A., Needleman, H. L., Waternaux, C., & Rabinowitz, M. (1986). Low-level lead exposure and infant development in the first year. Neurobehavioral Toxicology and Teratology, 8(2), 151-61.
Bellinger D, et al. Low-level Lead Exposure and Infant Development in the First Year. Neurobehav Toxicol Teratol. 1986 Mar-Apr;8(2):151-61. PubMed PMID: 2423895.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Low-level lead exposure and infant development in the first year. AU - Bellinger,D, AU - Leviton,A, AU - Needleman,H L, AU - Waternaux,C, AU - Rabinowitz,M, PY - 1986/3/1/pubmed PY - 1986/3/1/medline PY - 1986/3/1/entrez SP - 151 EP - 61 JF - Neurobehavioral toxicology and teratology JO - Neurobehav Toxicol Teratol VL - 8 IS - 2 N2 - The developmental impact of prenatal and early postnatal low-level lead exposure was assessed in a prospective study of 249 middle and upper-middle class infants with umbilical cord blood lead levels in the range currently considered "normal." Infants were classified into three exposure groups: "low" (less than 3 micrograms/dl), "mid" (6 to 7 micrograms/dl), and "high" (greater than or equal to 10 micrograms/dl). At 6 and 12 months, the lead concentration of capillary blood was measured, and the Bayley Scales of Infant Development administered. At both ages, Mental Development Index scores, adjusted for confounding, were inversely related to infants' umbilical cord blood lead levels. The difference between the mean adjusted scores of the infants in the low and high cord blood lead groups was 5.8 points at 6 months and 7.3 points at 12 months. At neither age were scores significantly related to postnatal blood lead levels. Prenatal exposure to lead levels relatively common among urban populations appear to be associated with less favorable development through the first year of life. SN - 0275-1380 UR - https://www.unboundmedicine.com/medline/citation/2423895/Low_level_lead_exposure_and_infant_development_in_the_first_year_ L2 - https://medlineplus.gov/developmentaldisabilities.html DB - PRIME DP - Unbound Medicine ER -