ArticleAnnals of translational medicine2022
Factors affecting the length of stay and hospital readmission rates after an acute exacerbation of chronic obstructive pulmonary disease: a systematic review and meta-analysis.
Article in Annals of translational medicine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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.
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.
Who cites it
3 citing papers in PubMed.
- Hypercapnia, Prognostic Nutritional Index and Length of Stay in Acute Exacerbation of COPD: A Two-Variable Admission Framework.Diagnostics (Basel, Switzerland) · 2026Article
- Impact of socioeconomic status and lifestyle factors on incidence of COPD and hospital readmissions: 13.7-year follow-up in UK Biobank.BMC public health · 2026Article
- Reducing Hospital Readmissions in Chronic Obstructive Pulmonary Disease Patients: Current Treatments and Preventive Strategies.Medicina (Kaunas, Lithuania) · 2025Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Background: Patients with chronic obstructive pulmonary disease (COPD) are often readmitted to hospital for treatment due to an acute exacerbation of the disease. However, there are few up-to-date studies investigating the lengths of stay and risk factors for readmission after an acute exacerbation of COPD. This study evaluated the length of stay in patients with an acute exacerbation of COPD and the factors that influenced their readmission. Methods: A search of the PubMed, Cochrane Central Register of Controlled Trials, Embase, Web of Science, China National Knowledge Infrastructure (CNKI), Wanfang, and Weipu databases, carried out using the following search terms: airflow limitation, airway disease, airway obstruction, chronic obstructive pulmonary disease, COPD, length of stay and influencing factors, long-term oxygen therapy, lung disease, readmission, and respiratory system disease. The Cochrane risk of bias tool was used to evaluate the quality of the retrieved studies, and a network meta-analysis was performed using RevMan 5.20. Results: Collectively, they included information on the length of stay for 630 patients who had been readmitted to hospital after an acute exacerbation of COPD (the readmitted group) and information on 688 patients who had not been readmitted (the non-readmitted group). Meta-analysis results showed that there was no difference in patient anxiety [risk ratio (RR) 1.22, 95% confidence interval (CI): 0.70-2.14] or long-term oxygen therapy (RR 1.91, 95% CI: 0.98-3.73) between the readmitted group and the non-readmitted group. However, there was a significant difference between the forced expiratory volume in one second (FEV1) predicted value [mean difference (MD) -5.85, 95% CI: -11.14 to -0.57] and the global initiative for chronic obstructive lung disease (GOLD) classification (C or D) (RR 1.61, 95% CI: 1.05-2.47). Discussion: In summary, no significant relationship was found between patient state of anxiety, long-term oxygen therapy, length of hospital stay, and readmission rate after an acute exacerbation of COPD. However, FEV1 predicted values and GOLD classifications (C or D) had an impact on the length of hospital stay and readmission rate after acute exacerbation of COPD. Larger samples, multiple centers, and further research are needed to confirm the findings of this research.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.