Evidence map›Paper›PMID 16953996›Full record

ArticleThe British journal of general practice : the journal of the Royal College of General Practitioners2006

Incidence and determinants of moderate COPD (GOLD II) in male smokers aged 40-65 years: 5-year follow up.

Roeland M M Geijer, Alfred P E Sachs, Theo J M Verheij, Philippe L Salomé, Jan-Willem J Lammers, Arno W Hoes

Abstract read
In one paragraph

Article in The British journal of general practice : the journal of the Royal College of General Practitioners, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
2.5field-weighted citation impact, top 11% 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

11 citing papers in PubMed, 1 synthesis or guideline pooled it, 29 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Childhood Cigarette Smoking and Risk of Chronic Obstructive Pulmonary Disease in Older U.S. Adults.American journal of respiratory and critical care medicine · 2023
    Article
  5. Article
  6. Review
  7. Article
  8. Clinical utility of varenicline for smokers with medical and psychiatric comorbidity.International journal of chronic obstructive pulmonary disease · 2009
    Review
  9. Quality of life in smokers: focus on functional limitations rather than on lung function?The British journal of general practice : the journal of the Royal College of General Practitioners · 2007
    Article
  10. Letter from a Dutch uncle.The British journal of general practice : the journal of the Royal College of General Practitioners · 2006
    Article
  11. Can early diagnosis and effective management combat the irresistible rise of COPD?The British journal of general practice : the journal of the Royal College of General Practitioners · 2006
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 1 institution in 1 country.

Roeland M M GeijerJulius Centre for Health Sciences and Primary Care, University Medical Centre Utrecht, the Netherlands. r.geijer@umcutrecht.nl
Alfred P E Sachs
Theo J M Verheij
Philippe L Salomé
Jan-Willem J Lammers
Arno W Hoes
University Medical Center Utrecht · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundChronic obstructive pulmonary disease (COPD) is a major health problem with an estimated prevalence of 10-15% among smokers. The incidence of moderate COPD, as defined by the Global Initiative for Chronic Obstructive Lung Disease (GOLD), is largely unknown.

aimTo determine the cumulative incidence of moderate COPD (forced expiratory volume in 1 second/forced vital capacity ratio [FEV1/FVC] <0.7 and FEV1 <80% predicted) and its association with patient characteristics in a cohort of male smokers.

designProspective cohort study.

settingThe city of IJsselstein, a small town in the Netherlands.

methodSmokers aged 40-65 years who were registered with local GPs, participated in a study to identify undetected COPD. Baseline measurements were taken in 1998 of 399 smokers with normal spirometry (n = 292) or mild COPD (FEV1/FVC <0.7 and FEV1 >or=80% predicted, n = 107) and follow-up measurements were conducted in 2003.

resultsAfter a mean follow-up of 5.2 years, 33 participants developed moderate COPD (GOLD II). This showed an estimated cumulative incidence of 8.3% (95% CI = 5.8 to 11.4) and a mean annual incidence of 1.6%. No participant developed severe airflow obstruction. The risk of developing moderate COPD in smokers with baseline mild COPD (GOLD I) was five times higher than in those with baseline normal spirometry (one in five versus one in 25).

conclusionsIn a cohort of middle-aged male smokers, the estimated cumulative incidence of moderate COPD (GOLD II) over 5 years was relatively high (8.3%). Age, childhood smoking, cough, and one or more GP contacts for lower respiratory tract problems were independently associated with incident moderate COPD.

Indexed as

AdultAgedCohort StudiesFollow-Up StudiesForced Expiratory VolumeHumansIncidenceMaleMiddle AgedMultivariate AnalysisNetherlandsPrevalenceProspective StudiesPulmonary Disease, Chronic ObstructiveSeverity of Illness IndexSmoking

Identifiers

PMID16953996
PMCPMC1876630
OpenAlexW1916442754

What OpenQuestion holds

Textmetadata
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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.