Evidence map›Paper›PMID 30694610›Full record

SynthesisPediatric pulmonology2019

Fractional exhaled nitric oxide in preterm-born subjects: A systematic review and meta-analysis.

Christopher W Course, Sailesh Kotecha, Sarah J Kotecha

Open access · hybridAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Pediatric pulmonology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 2 pooled it
3.0field-weighted citation impact, top 8% 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

20 citing papers in PubMed, 2 syntheses or guidelines pooled it, 35 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Bronchopulmonary dysplasia and extremely preterm birth: time for a broader perspective on long-term outcomes.European respiratory review : an official journal of the European Respiratory Society · 2026
    Review
  5. Review
  6. Article
  7. Moderate-to-late prematurity: understanding respiratory consequences and modifiable risk factors.European respiratory review : an official journal of the European Respiratory Society · 2025
    Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. Article
  20. Bronchopulmonary dysplasia: what are its links to COPD?Therapeutic advances in respiratory disease
    Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 2 institutions in 1 country.

Christopher W CourseWelsh Regional Neonatal Intensive Care Unit, University Hospital of Wales, Cardiff, UK.ORCID 0000-0002-7789-2057
Sailesh KotechaDepartment of Child Health, School of Medicine, Cardiff University, Cardiff, UK.ORCID 0000-0003-3535-7627
Sarah J KotechaDepartment of Child Health, School of Medicine, Cardiff University, Cardiff, UK.ORCID 0000-0001-5640-0300
Cardiff University · GBUniversity Hospital of Wales · GB

Funding

Medical Research Council MR/M022552/1
6 · The paper itself

Abstract

backgroundDecreased lung function is common in preterm-born survivors. Increased fractional exhaled nitric oxide (FeNO) appears to be a reliable test for eosinophillic airway inflammation especially in asthma. We, systematically, reviewed the literature to compare FeNO levels in preterm-born children and adults who did or did not have chronic lung disease of prematurity (CLD) in infancy with term-born controls.

methodsWe searched eight databases up to February 2018. Studies comparing FeNO levels in preterm-born subjects (<37 weeks' gestation) in childhood and adulthood with and without (CLD) with term-born subjects were identified and extracted by two reviewers. Data were analysed using Review Manager v5.3.

resultsFrom 6042 article titles, 183 full articles were screened for inclusion. Nineteen studies met the inclusion criteria. Seventeen studies compared FeNO levels in preterm- and term-born children and adults; 11 studies (preterm n = 640 and term n = 4005) were included in a meta-analysis. The mean FeNO concentration difference between the preterm-born and term-born group was -0.74 (95% CI -1.88 to 0.41) ppb. For the six studies reporting data on CLD (preterm n = 204 and term n = 211) the mean difference for FeNO levels was -2.82 (95% CI -5.87 to 0.22) ppb between the preterm-born CLD and term-born groups.

conclusionsOur data suggest that preterm born children with and without CLD have similar FeNO levels to term-born children suggesting an alternative mechanism to eosinophilic inflammation for symptoms of wheezing and airway obstruction observed in preterm-born subjects.

Indexed as

AdultAsthmaBreath TestsBronchopulmonary DysplasiaChildEosinophiliaFemaleHumansInfant, NewbornInfant, PrematureInflammationLung Diseases, ObstructiveMaleNitric OxideRespiratory SoundsNitric Oxideasthmabronchopulmonary dysplasiachronic lung disease of prematurityFeNOfractional exhaled nitric oxideprematurity

Identifiers

PMID30694610
PMCPMC6519366
OpenAlexW2914132631

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.