Port Pirie Cohort Study

A longitudinal study centred around the lead-smelting community of Port Pirie, South Australia; the study evaluated the long-term impact of the delayed neuropsychologic development attributed to increased lead exposure in early childhood
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Lifetime exposure to environmental lead and children's intelligence at 11-13 years: the Port Pirie cohort study.
Declining blood lead levels and changes in cognitive function during childhood: the Port Pirie cohort study.
Lifetime exposure to environmental lead and children's intelligence et 11-13 years: the Port Pirie cohort study.
A study on the identification of confounders in the Port Pirie cohort study (Tong and Lu 2001) found that the size of the relationship between blood lead levels and mean IQ scores decreased by up to 40% when adjustment was made for 4 confounders but by less than 10% when a further 10 confounders were added to the regression models.