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Deficits in psychologic and classroom performance of children with elevated dentine lead levels

Herbert Needleman and colleagues’ 1979 study of lead in children’s teeth and their test scores.

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Dates
1979
The debate

What it found

Lead exposure, at doses below those producing symptoms severe enough to be diagnosed clinically, appears to be associated with neuropsychologic deficits that may interfere with classroom performance.1

Who disputes it

Each side is quoted in its own words. Whether a finding holds is not decided here.

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finding disputed by

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Timeline 4 dates
  1. 1979 Deficits in psychologic and classroom performance of children with elevated dentine lead levels
  2. 1979 Herbert Needleman authored Deficits in psychologic and classroom performance of children with elevated dentine lead levels
  3. 1993 C. B. Ernhart disputes a finding of Deficits in psychologic and classroom performance of children with elevated dentine lead levels According to C. B. Ernhart
  4. 1993 Sandra Scarr disputes a finding of Deficits in psychologic and classroom performance of children with elevated dentine lead levels According to Sandra Scarr
Proof 2 sources
  1. Deficits in psychologic and classroom performance of children with elevated dentine lead levels (N Engl J Med 300:689-95), New England Journal of Medicine (abstract, PubMed), 29 Mar 1979. Scholarship & press
    Lead exposure, at doses below those producing symptoms severe enough to be diagnosed clinically, appears to be associated with neuropsychologic deficits that may interfere with classroom performance.
    the performance of 58 children with high and 100 with low dentine lead levels was compared.
  2. On being a whistleblower: the Needleman case (Ethics Behav 3:73-93), Ethics & Behavior (abstract, PubMed), 1993. Scholarship & press
    what we saw left us with serious concerns.
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