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Executive function and IQ predict mathematical and attention problems in very preterm children
Cornelieke Sandrine Hanan Aarnoudse-Moens1, Nynke Weisglas-Kuperus, Hugo Joseph Duivenvoorden
1Department of Paediatrics, Erasmus University Medical Centre, Rotterdam, The Netherlands. c.aarnoudse-moens@amc.uva.nl
Insights
Executive function deficits predict math and attention issues in very preterm children, even after accounting for IQ. These executive function (EF) challenges impact learning and behavior in this vulnerable population.
Area of Science:
- Developmental Psychology
- Neuroscience
- Pediatrics
Background:
- Very preterm birth (gestational age ≤ 30 weeks) is associated with increased risks for neurodevelopmental challenges.
- Executive functions (EF) are crucial cognitive processes that mature throughout childhood and are vital for academic success and behavioral regulation.
- Understanding the specific contributions of EF to learning and attention problems in very preterm children is essential for targeted interventions.
Purpose of the Study:
- To investigate the impact of executive function (EF) on mathematical abilities and attention problems in very preterm children compared to term-born controls.
- To determine if EF predicts these difficulties independently of intelligence quotient (IQ) and processing speed.
- To examine potential interactions between birth status (very preterm vs. term) and cognitive factors on academic and behavioral outcomes.
Main Methods:
- A cohort of 200 very preterm children and 230 term-born children (ages 8-9) without severe disabilities were assessed.
- Executive functions including verbal fluency, working memory, visuospatial span, planning, and impulse control were evaluated.
- Mathematics was assessed using the Dutch Pupil Monitoring System, and attention problems were rated by parents and teachers via standardized questionnaires.
Main Results:
- Very preterm children exhibited poorer mathematical performance and higher rates of attention problems compared to term controls.
- Intelligence quotient (IQ) uniquely predicted mathematics in both preschool and primary school children.
- Executive function (EF) significantly predicted mathematics in primary school and inattention (parent and teacher rated) in both preschool and primary school, independent of IQ.
Conclusions:
- Impaired executive function (EF) is a significant predictor of mathematical and attention problems in very preterm children, beyond the effects of lower IQ.
- These findings highlight the critical role of EF in the neurodevelopmental outcomes of extremely preterm infants.
- Targeted interventions addressing EF deficits may be beneficial for improving academic and behavioral outcomes in this population.
Abstract:
Objective of this study was to examine the impact of executive function (EF) on mathematical and attention problems in very preterm (gestational age ≤ 30 weeks) children. Participants were 200 very preterm (mean age 8.2 ± 2.5 years) and 230 term children (mean age 8.3 ± 2.3 years) without severe disabilities, born between 1996 and 2004. EFs assessed included verbal fluency, verbal working memory, visuospatial span, planning, and impulse control. Mathematics was assessed with the Dutch Pupil Monitoring System and parents and teachers rated attention problems using standardized behavior questionnaires. The impact of EF was calculated over and above processing speed indices and IQ. Interactions with group (very preterm versus term birth status) were examined. Analyses were conducted separately for two subsamples: children in preschool and children in primary school. Very preterm children performed poorer on tests for mathematics and had more parent and teacher rated attention problems than term controls (ß(s)>.11, P(s)<.01). IQ contributed unique variance to mathematics in preschool and in primary school (ß(s)>.16, P(s)<.007). A significant interaction of group with IQ (ß = -. 24, P = .02) showed that IQ contributed unique variance to attention problems as rated by teachers, but that effects were stronger for very preterm than for term infants. Over and above IQ, EF contributed unique variance to mathematics in primary school (ß = .13, P<.001), to parent rated inattention in preschool and in primary school (ß(s)>-.16, P(s)<.04), and to teacher rated inattention in primary school (ß = -.19; ß = .19, P(s)<.009). In conclusion, impaired EF is, over and above impaired IQ, an important predictor for poor mathematics and attention problems following very preterm birth.
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