Evidence map›Paper›PMID 29312718›Full record

ArticleJournal of thoracic disease2017

Chronic bronchitis is associated with severe exacerbation and prolonged recovery period in Chinese patients with COPD: a multicenter cross-sectional study.

Ying Liang, Yahong Chen, Rui Wu, Ming Lu, Wanzhen Yao, Jian Kang, Baiqiang Cai, Xin Zhou, Zheng Liu, Ping Chen and 5 more

Open access · hybridAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Journal of thoracic disease, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 1 pooled it
0.2field-weighted citation impact, top 38% 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

6 citing papers in PubMed, 1 synthesis or guideline pooled it, 13 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Observational
  5. Observational
  6. Review
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

15 authors at 9 institutions in 1 country.

Ying LiangPulmonary and Critical Care Medicine, Peking University Third Hospital, Beijing 100191, China.
Yahong ChenPulmonary and Critical Care Medicine, Peking University Third Hospital, Beijing 100191, China.
Rui WuPulmonary and Critical Care Medicine, Peking University Third Hospital, Beijing 100191, China.
Ming LuPulmonary and Critical Care Medicine, Peking University Third Hospital, Beijing 100191, China.
Wanzhen YaoPulmonary and Critical Care Medicine, Peking University Third Hospital, Beijing 100191, China.
Jian KangPulmonary and Critical Care Medicine, Institute of Respiratory Diseases, First Hospital of China Medical University, Shenyang 110000, China.
Baiqiang CaiPulmonary and Critical Care Medicine, Peking Union Hospital, Beijing 100000, China.
Xin ZhouPulmonary and Critical Care Medicine, Shanghai First People's Hospital, Shanghai 20000, China.
Zheng LiuPulmonary and Critical Care Medicine, China Oil and Gas Group Central Hospital, Langfang 065000, China.
Ping ChenPulmonary and Critical Care Medicine, The General Hospital of Shenyang Military Region of PLA, Shenyang 110000, China.
Dejun SunPulmonary and Critical Care Medicine, Inner Mongolia People's Hospital, Hohhot 010000, China.
Jingping ZhengState Key Lab. of Respiratory Disease, Guangzhou Institute of Respiratory Disease, Guangzhou 510000, China.
Guoyang WangPulmonary and Critical Care Medicine, Beijing Jingmei Group General Hospital, Beijing 100000, China.
Yulin FengPulmonary and Critical Care Medicine, West China Hospital of Sichuan University, Chengdu 610000, China.
Yongjian XuPulmonary and Critical Care Medicine, Tongji Hospital of Tongji Medical College of Huazhong University of Science and Technology, Wuhan 430000, China.
Peking University · CNChina Medical University · CNGeneral Hospital of Shenyang Military Region · CNInner Mongolia People's Hospital · CNOil and Gas Center · CNPeking University Third Hospital · CNShanghai First People's Hospital · CNState Key Laboratory of Respiratory Disease · CNUnion Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundChronic bronchitis (CB) is closely associated with the frequency and severity of chronic obstructive pulmonary disease (COPD) exacerbation. However, little is known about the impact of CB on COPD exacerbations, severe and non-severe, and on recovery from an exacerbation.

methodsWe conducted a nation-wide multicenter cross-sectional survey in China between September 2007 and December 2008. Eleven hospitals participated in this study. Patients' demographic information, presence of CB, overall numbers of COPD exacerbation and severe exacerbation leading to emergency visit, hospitalization and intensive care unit (ICU) stay in the past year, recovery period following the last exacerbation, and well- or poor-recovery were recorded.

resultsA total of 1,101 patients with COPD were enrolled and 890 (80.8%) had CB. Patients with CB reported more history of frequent exacerbations (≥2/patient/year) (59.6%

conclusionsCB is associated with frequent exacerbations of COPD in Chinese population, especially severe exacerbations requiring emergency visit and hospitalization admission. Additionally, CB significantly prolongs recovery period following COPD exacerbation.

Indexed as

chronic bronchitis (CB)Chronic obstructive pulmonary disease (COPD)exacerbationhospitalization

Identifiers

PMID29312718
PMCPMC5756983
OpenAlexW2772698303

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.