Evidence map›Paper›PMID 36990472›Full record

ArticleThe European respiratory journal2023

Preterm birth and asthma and COPD in adulthood: a nationwide register study from two Nordic countries.

Anna Pulakka, Kari Risnes, Johanna Metsälä, Suvi Alenius, Katriina Heikkilä, Sara Marie Nilsen, Pieta Näsänen-Gilmore, Peija Haaramo, Mika Gissler, Signe Opdahl and 1 more

Open access · bronzeAbstract read
In one paragraph

Article in The European respiratory journal, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed
15.3field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

41 citing papers in PubMed, 59 citations in OpenAlex.

  1. Trial
  2. Pre-COPD, PRISm, and COPD in young adults born preterm.Annals of the American Thoracic Society · 2026
    Article
  3. Postnatal growth and childhood asthma in preterm and full-term twins: A cohort study.Pediatric allergy and immunology : official publication of the European Society of Pediatric Allergy and Immunology · 2026
    Article
  4. Article
  5. Neonatal critical illness is associated with pancytopenia development in childhood.medRxiv : the preprint server for health sciences · 2026
    Article
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  8. Breastfeeding in term and preterm infants with and without growth restriction: A 50-year analysis of incidence and duration.International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics · 2026
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

11 authors at 6 institutions in 3 countries.

Anna PulakkaPopulation Health Unit, Finnish Institute for Health and Welfare, Helsinki, Finland anna.pulakka@thl.fi.ORCID 0000-0002-0602-8632
Kari RisnesDepartment of Clinical and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway.ORCID 0000-0001-6599-0146
Johanna MetsäläPopulation Health Unit, Finnish Institute for Health and Welfare, Helsinki, Finland.ORCID 0000-0003-3806-1020
Suvi AleniusPopulation Health Unit, Finnish Institute for Health and Welfare, Helsinki, Finland.ORCID 0000-0003-4010-5299
Katriina HeikkiläPopulation Health Unit, Finnish Institute for Health and Welfare, Helsinki, Finland.ORCID 0000-0001-6269-6881
Sara Marie NilsenDepartment of Clinical and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway.ORCID 0000-0001-6762-9645
Pieta Näsänen-GilmorePopulation Health Unit, Finnish Institute for Health and Welfare, Helsinki, Finland.ORCID 0000-0002-6886-4126
Peija HaaramoFinnish Social and Health Data Permit Authority Findata, Helsinki, Finland.
Mika GisslerDepartment of Knowledge Brokers, Finnish Institute for Health and Welfare, Helsinki, Finland.ORCID 0000-0001-8254-7525
Signe OpdahlDepartment of Public Health and Nursing, Norwegian University of Science and Technology, Trondheim, Norway.ORCID 0000-0002-6593-8433
Eero KajantiePopulation Health Unit, Finnish Institute for Health and Welfare, Helsinki, Finland.ORCID 0000-0001-7081-8391
Norwegian University of Science and Technology · NOFinnish Institute for Health and Welfare · FIFinnish Food Authority · FIKarolinska Institutet · SETampere University · FIUniversity of Helsinki · FI

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPreterm birth affects lungs in several ways but few studies have follow-up until adulthood. We investigated the association of the entire spectrum of gestational ages with specialist care episodes for obstructive airway disease (asthma and chronic obstructive pulmonary disease (COPD)) at age 18-50 years.

methodsWe used nationwide registry data on 706 717 people born 1987-1998 in Finland (4.8% preterm) and 1 669 528 born 1967-1999 in Norway (5.0% preterm). Care episodes of asthma and COPD were obtained from specialised healthcare registers, available in Finland for 2005-2016 and in Norway for 2008-2017. We used logistic regression to estimate odds ratios (ORs) for having a care episode with either disease outcome.

resultsOdds of any obstructive airway disease in adulthood for those born at <28 or 28-31 completed weeks were 2-3-fold of those born full term (39-41 completed weeks), persisting after adjustments. For individuals born at 32-33, 34-36 or 37-38 weeks, the odds were 1.1- to 1.5-fold. Associations were similar in the Finnish and the Norwegian data and among people aged 18-29 and 30-50 years. For COPD at age 30-50 years, the OR was 7.44 (95% CI 3.49-15.85) for those born at <28 weeks, 3.18 (95% CI 2.23-4.54) for those born at 28-31 weeks and 2.32 (95% CI 1.72-3.12) for those born at 32-33 weeks. Bronchopulmonary dysplasia in infancy increased the odds further for those born at <28 and 28-31 weeks.

conclusionPreterm birth is a risk factor for asthma and COPD in adulthood. The high odds of COPD call for diagnostic vigilance when adults born very preterm present with respiratory symptoms.

Indexed as

AsthmaPremature BirthPulmonary Disease, Chronic ObstructiveAdolescentAdultFemaleGestational AgeHumansInfant, NewbornLungMiddle AgedScandinavian and Nordic CountriesYoung Adult

Identifiers

PMID36990472
PMCPMC10285109
OpenAlexW4361298904

What OpenQuestion holds

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LicenceCC BY-NC
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.