Evidence map›Paper›PMID 23827770›Full record

ArticleThe international journal of tuberculosis and lung disease : the official journal of the International Union against Tuberculosis and Lung Disease2013

Sickle-cell disease in Malawian children is associated with restrictive spirometry: a cross-sectional survey.

J Cook, O Jefferis, P Matchere, E Mbale, J Rylance

Open access · greenAbstract read
In one paragraph

Article in The international journal of tuberculosis and lung disease : the official journal of the International Union against Tuberculosis and Lung Disease, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
0.3field-weighted citation impact, top 39% 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

8 citing papers in PubMed, 14 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Non-communicable respiratory disease in Malawi: a systematic review and meta-analysis.Malawi medical journal : the journal of Medical Association of Malawi · 2020
    Article
  6. Article
  7. Article
  8. Unraveling restrictive chronic lung disease in sickle cell disease.The international journal of tuberculosis and lung disease : the official journal of the International Union against Tuberculosis and Lung Disease · 2013
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 1 institution in 1 country.

J CookLewisham Hospital National Health Service Trust, London, UK. jamescook@doctors.org.uk
O Jefferis
P Matchere
E Mbale
J Rylance
National Health Service · GB

Funding

Wellcome Trust 086756Wellcome Trust 100890
6 · The paper itself

Abstract

backgroundA proportion of children with sickle-cell disease (SCD) demonstrate clinical findings consistent with the diagnosis of asthma. These children are at increased risk of complications, including acute chest syndrome.

objectiveTo assess lung function and symptoms of asthma in children with SCD in Blantyre, Malawi.

designTwenty-five children aged 7-16 years with electrophoretically confirmed SCD were recruited to undergo spirometry and questionnaire screening of asthma symptoms. Forced expiratory volume in 1 second (FEV1), forced vital capacity (FVC) and FEV1/FVC ratio were compared with local and international reference ranges. Symptoms were assessed using the International Study of Asthma and Allergies in Childhood questionnaire.

resultsMean spirometric indices, represented as Z-scores derived from international reference ranges, were low: FEV1 -1.64 (95%CI -2.04 to -1.23), FVC -1.49 (95%CI -1.90 to -1.09), FEV1/FVC -0.39 (95%CI -0.76 to -0.03). Comparison with local reference ranges, represented as percentage of predicted value, revealed similar impairments: FEV1 86.9 (95%CI 81.1 to 92.7), FVC 89.0 (95%CI 83.5 to 94.4), FEV1/FVC ratio 97.7 (95%CI 95.4 to 99.9). The prevalence of wheeze was 16.7%.

conclusionWe present spirometric abnormalities suggestive of restrictive lung disease with no evidence of obstructive defects or increased prevalence of wheeze.

Indexed as

SpirometryAdolescentAnemia, Sickle CellAsthmaCalibrationChildCross-Sectional StudiesFemaleForced Expiratory VolumeHealth Care SurveysHumansLungMalawiMalePredictive Value of TestsPrevalence

Identifiers

PMID23827770
PMCPMC3826120
OpenAlexW2060691181

What OpenQuestion holds

Textmetadata
LicenceTDM
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.