Two errors occurred in this article by Ackerman et al entitled “A Review of the Effects of Prenatal Cocaine Exposure Among School-Age Children” published in the March 2010 issue of Pediatrics (2010;125:554–565; doi:10.1542/peds.2009-0637).
On page 562, in Table 6, the 6th entry under the Control column heading reads: “Not reported” and the 6th entry under the Other Effects/Comments column heading reads “PCE associated with long-term changes in brain composition, which were related to performance on neuropsychological tests; limited sample size and covariate control.” The entry under the Control column should have read: “Groups matched on gender, handedness, IQ, prematurity, age, race, and caregiver stability. Statistical control on A, M, T”; and the entry under the Comments column should have read: “PCE associated with long-term changes in brain composition, which were related to performance on neuropsychological tests; limited sample size.”
On page 563, the final sentence reads: “However, most studies have lacked covariate control, raising concerns about potential confounds.” The sentence should have read: “Although many studies matched comparison groups, sample sizes were small and often lacked statistical control, emphasizing the need for replication.” These changes do not alter the findings reported in the original manuscript.
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