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Preterm or early term birth and risk of attention-deficit/hyperactivity disorder : a national cohort and co-sibling study
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- Crump, Casey (author)
- Icahn School of Medicine at Mount Sinai
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- Sundquist, Jan (author)
- Lund University,Lunds universitet,Allmänmedicin och klinisk epidemiologi,Forskargrupper vid Lunds universitet,Family Medicine and Clinical Epidemiology,Lund University Research Groups,Skåne University Hospital
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- Sundquist, Kristina (author)
- Lund University,Lunds universitet,Allmänmedicin och klinisk epidemiologi,Forskargrupper vid Lunds universitet,Family Medicine and Clinical Epidemiology,Lund University Research Groups,Skåne University Hospital
- (creator_code:org_t)
- 2023
- 2023
- English.
- In: Annals of Epidemiology. - 1047-2797. ; 86, s. 4-125
- Journal article (peer-reviewed)
Abstract
Subject headings
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- Purpose: To examine risks of attention-deficit/hyperactivity disorder (ADHD) in preterm and early term birth survivors, and potential sex-specific differences. Methods: A national cohort study was conducted of all 4061,795 singletons born in Sweden in 1973–2013 who survived infancy, followed up for ADHD identified from nationwide diagnoses and medications through 2018. Poisson regression was used to compute prevalence ratios (PRs), adjusting for sociodemographic and perinatal factors. Co-sibling analyses assessed for confounding by unmeasured shared familial (genetic or environmental) factors. Results: ADHD prevalences by gestational age at birth were 12.1% for extremely preterm (22–27 weeks), 7.0% for moderately preterm (28–33 weeks), 5.7% for late preterm (34–36 weeks), 6.1% for all preterm (<37 weeks), 5.2% for early term (37–38 weeks), and 4.5% for full-term (39–41 weeks). Adjusted PRs comparing extremely preterm, all preterm, or early term versus full-term, respectively, were 2.35 (95% CI, 2.15–2.57), 1.28 (1.25–1.31), and 1.12 (1.10–1.13) among males, and 2.46 (2.17–2.78), 1.24 (1.20–1.28), and 1.08 (1.06–1.10) among females (P < .001 for each). These associations were virtually unchanged after controlling for shared familial factors. Both spontaneous and medically indicated preterm birth were associated with ADHD (adjusted PRs, 1.21; 95% CI, 1.18–1.24; and 1.39; 1.34–1.43, respectively). Conclusions: In this large cohort, preterm and early term birth were associated with increased risks of ADHD in males and females, independently of covariates and shared familial factors.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Pediatrik (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Pediatrics (hsv//eng)
Keyword
- Attention deficit disorder
- Attention deficit-hyperactivity disorder
- Gestational age
- Prematurity
- Preterm birth
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- art (subject category)
- ref (subject category)
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