A Pilot Study of Btood Lead Levels and NeurobehavloraJ Function in Children Living in Chennai India

The relationship between blood lead level and neurodevelopment was assessed in a pilot cross-sectional study of 74 4-14-year-old children in Chennai, India. Mean blood lead level was 11.1 μg/dL (2.5,–38.3).

Publication Type

Journal Article

Experts

David C Bellinger, Howard Hu, Kalpana Balakrishnan, Kartigeyan Kalaniti, Naveen Thomas, Padmavathi Ramaswamy, Pradeep Rajan, Sankar Sambandam

Time Frame

2013

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Description

The Binet-Kamath IQ test and the Wide Range Assessment of Visual Motor Activity (WRAVMA) were administered to 58 children. Teachers completed the Connor’s Behavioral Rating Scale. Excluding two outliers, IQ and WRAVMA composite scores were inversely related to blood lead level, with an effect size of approximately 6 points decline for a 10-μg/dL. increase in blood lead. Children in the highest and lowest blood lead quartiles had mean IQs of 95.6±13.3. and 102.0±22.5, respectively. Behavior ratings were not associated with blood lead level. Lead exposure is a significant problem among Indian children, with many having blood lead leveIs associated with increased neurodevelopmental risk.

Additional information

Publication Type

Journal Article

Experts

David C Bellinger, Howard Hu, Kalpana Balakrishnan, Kartigeyan Kalaniti, Naveen Thomas, Padmavathi Ramaswamy, Pradeep Rajan, Sankar Sambandam

Time Frame

2013