Evidence map›Paper›PMID 21831287›Full record

ArticleBMC health services research2011

Risk factors of hospitalization and readmission of patients with COPD in Hong Kong population: analysis of hospital admission records.

Frank W K Chan, Fiona Y Y Wong, Carrie H K Yam, Wai-ling Cheung, Eliza L Y Wong, Michael C M Leung, William B Goggins, Eng-kiong Yeoh

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in BMC health services research, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 5 pooled it
–field-weighted citation impact
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

22 citing papers in PubMed, 5 syntheses or guidelines pooled it.

  1. Pooled it
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  4. Risk factors for all-cause hospital readmission following exacerbation of COPD: a systematic review and meta-analysis.European respiratory review : an official journal of the European Respiratory Society · 2020
    Pooled it
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  6. Trial
  7. Article
  8. Review
  9. Hospital Readmission Due to Chronic Obstructive Pulmonary Disease: A Longitudinal Study.International journal of health policy and management · 2022
    Article
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  17. Acute exacerbations of COPD: risk factors for failure and relapse.International journal of chronic obstructive pulmonary disease · 2017
    Review
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  19. Predictors and outcomes of unplanned readmission to a different hospital.International journal for quality in health care : journal of the International Society for Quality in Health Care · 2015
    Article
  20. Article
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

8 authors.

Frank W K ChanSchool of Public Health and Primary Care, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, N.T., Hong Kong. cwkfrank@cuhk.edu.hk
Fiona Y Y Wong
Carrie H K Yam
Wai-ling Cheung
Eliza L Y Wong
Michael C M Leung
William B Goggins
Eng-kiong Yeoh

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundChronic Obstructive Pulmonary Disease (COPD) accounts for around 4% of all public hospital annual admissions in Hong Kong. By year 2020, COPD will be ranked fifth among the conditions with the highest burden to the society. This study identifies admission and unplanned readmission of COPD patients, factors affecting unplanned readmission, and estimates its cost burden on the public healthcare system in Hong Kong.

methodsThis is a retrospective study analyzing COPD admissions to all public hospitals in Hong Kong. All admission episodes to acute medical wards with the principal diagnosis of COPD (ICD-9:490-492, 494-496) from January 2006 to December 2007 were captured. Unplanned readmission was defined as an admission which followed a previous admission within 30 days.

resultsIn 2006 and 2007, 65497 (8.0%) of episodes from medical wards were identified as COPD admissions, and among these, 15882 (24.2%) were unplanned readmissions. The mean age of COPD patients was 76.81 ± 9.59 years and 77% were male. Unplanned readmission was significantly associated with male gender, receiving public assistance and living in nursing homes while no association was found with the Charlson comorbidity index. Patients who were readmitted unplanned had a significant longer acute length of stay (β = 0.3894, P < 0.001) after adjustment for other covariates.

conclusionsUnplanned readmission of COPD patients has a huge impact on the public healthcare system. A systematic approach in programme provision and a good discharge planning process targeting on COPD patients who are at high risk of unplanned readmission are essential.

Indexed as

Pulmonary Disease, Chronic ObstructiveAgedAged, 80 and overFemaleHong KongHumansMaleMedical AuditPatient ReadmissionRetrospective StudiesRisk Factors

Identifiers

PMID21831287
PMCPMC3162881

What OpenQuestion holds

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Registered trials

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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.