Evidence map›Paper›PMID 16670174›Full record

ArticleThorax2006

Cough frequency in children with mild asthma correlates with sputum neutrophil count.

A M Li, T W T Tsang, D F Y Chan, H S Lam, H K So, R Y T Sung, T F Fok

Open access · bronzeAbstract read
In one paragraph

Article in Thorax, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
2.0field-weighted citation impact, top 14% 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

9 citing papers in PubMed, 39 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Th17 Lymphocytes in Children with Asthma: Do They Influence Control?Pediatric allergy, immunology, and pulmonology · 2021
    Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Parent-child agreement in report of nighttime respiratory symptoms and sleep disruptions and quality.Journal of pediatric health care : official publication of National Association of Pediatric Nurse Associates & Practitioners
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 2 institutions in 1 country.

A M LiDepartment of Paediatrics, Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, Hong Kong. albertmli@cuhk.edu.hk
T W T Tsang
D F Y Chan
H S Lam
H K So
R Y T Sung
T F Fok
Chinese University of Hong Kong · CNPrince of Wales Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundA study was undertaken to measure cough frequency in children with stable asthma using a validated monitoring device, and to assess the correlation between cough frequency and the degree and type of airway inflammation.

methodsThirty six children of median age 11.5 years (interquartile range (IQR) 9-14) with stable asthma were recruited. They underwent spirometric testing, exhaled nitric oxide (eNO) measurement, sputum induction for differential cell count, and ambulatory cough monitoring for 24 hours. Coughing episodes were counted both as individual spikes and as clusters.

resultsAll children had mild intermittent asthma and their median forced expiratory volume in 1 second and eNO were 83.3% (IQR 81.1-97.6) and 56.1 ppb (IQR 37.4-105), respectively. The median number of cough episodes per day was 25.5 (IQR 16-42.8). Sputum induction was successful in 69% of the subjects and cough frequency was found to have a significant positive correlation with sputum neutrophil count (r = 0.833, p = 0.0001).

conclusionsChildren with stable mild asthma have increased cough frequency that might be driven by a neutrophilic inflammatory pathway.

Indexed as

AsthmaBreath TestsChildCoughFemaleHumansLeukocyte CountMaleNeutrophilsNitric OxideProspective StudiesSpirometrySputumNitric Oxide

Identifiers

PMID16670174
PMCPMC2117083
OpenAlexW2023216206

What OpenQuestion holds

Textmetadata
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.