Corrigendum correcting the brief report ‘The influence of preschool IQ on the individual-order stability of intelligence into adulthood’

Abstract

It has come to our attention that there is an error in the second paragraph of our published brief report.¹ Specifically, we previously stated that ‘158 infants born preterm (<37 weeks of gestation; 30 infants died as neonates) and 100 term-born peers (≥37 weeks) were enrolled at birth’. The correct numbers are ‘159 infants were born preterm (<37 weeks of gestation; 30 infants died as neonates), and 99 were born at term (≥37 weeks)’. We confirm that this error did not affect the results presented in the brief report.

The error pertains to one infant who was incorrectly categorised as term-born when, in fact, they were born preterm. This infant had died as a neonate and therefore was not included in the analytic sample of this brief report, as IQ data were never assessed.

Further, Table S2 contains descriptive information on the gestational age of preterm infants. In the process of digitising the data of the Zurich Longitudinal Studies (see ref.² for details), it became evident that gestational age was recorded differently across individuals—either as anamnestic information or as the physician's clinical impression. We have now standardised this data to consistently reflect the anamnestic information for all infants. This adjustment resulted in minimal changes to the descriptive information presented in Table S2. We confirm that these changes did not affect the results presented in the brief report.

The online version of the article has been corrected accordingly.