Evidence map›Paper›PMID 36402998›Full record

ArticleBMC pulmonary medicine2022

Diagnostic accuracy of pleural fluid lactate dehydrogenase to adenosine deaminase ratio for tuberculous pleural effusion: an analysis of two cohorts.

Zhi Yan, Jian-Xun Wen, Hua Wang, Ting-Wang Jiang, Jin-Hong Huang, Hong Chen, Li Yan, Zhi-De Hu, Wen-Qi Zheng

Open access · goldAbstract read
In one paragraph

Article in BMC pulmonary medicine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
2.3field-weighted citation impact, top 10% 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

9 citing papers in PubMed, 17 citations in OpenAlex.

  1. Article
  2. Article
  3. A diagnostic nomogram for tuberculous pleural effusion: Methodological considerations.Journal of clinical tuberculosis and other mycobacterial diseases · 2026
    Article
  4. Article
  5. Article
  6. Review
  7. Article
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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

9 authors at 2 institutions in 1 country.

Zhi YanDepartment of Laboratory Medicine, The Affiliated Hospital of Inner Mongolia Medical University, Tongdao North Street 1, Hohhot, 010050, China.
Jian-Xun WenDepartment of Medical Experiment Center, The Basic Medical Sciences College of Inner Mongolia Medical University, Hohhot, 010050, China.
Hua WangDepartment of Laboratory Medicine, The Affiliated Hospital of Inner Mongolia Medical University, Tongdao North Street 1, Hohhot, 010050, China.
Ting-Wang JiangDepartment of Key Laboratory, The Affiliated Changshu Hospital of Xuzhou Medical University, Suzhou, 215500, China.
Jin-Hong HuangDepartment of Pulmonary and Critical Care Medicine, The Affiliated Changshu Hospital of Xuzhou Medical University, Suzhou, 215500, China.
Hong ChenDepartment of Pulmonary and Critical Care Medicine, The Affiliated Changshu Hospital of Xuzhou Medical University, Suzhou, 215500, China.
Li YanDepartment of Respiratory and Critical Care Medicine, The Affiliated Hospital of Inner Mongolia Medical University, Hohhot, 010050, China.
Zhi-De HuDepartment of Laboratory Medicine, The Affiliated Hospital of Inner Mongolia Medical University, Tongdao North Street 1, Hohhot, 010050, China. hzdlj81@163.com.
Wen-Qi ZhengDepartment of Laboratory Medicine, The Affiliated Hospital of Inner Mongolia Medical University, Tongdao North Street 1, Hohhot, 010050, China. zhengwenqi2011@163.com.
Inner Mongolia Medical University · CNXuzhou Medical College · CN

Funding

the Natural and Science Foundation of Inner Mongolia Autonomous Region for Distinguished Young Scholars 2020JQ07the Zhixue Project, Zhiyuan Funding of Inner Mongolia Medical University ZY 0130013
6 · The paper itself

Abstract

backgroundThis study aimed to evaluate the diagnostic accuracy of pleural fluid (PF) lactate dehydrogenase (LDH) to adenosine deaminase (ADA) (LDH/ADA) ratio for tuberculous pleural effusion (TPE). Especially to explore whether the LDH/ADA ratio provides added diagnostic value to ADA.

methodsThe diagnostic accuracy of PF LDH/ADA ratio and ADA for TPE was evaluated in two cohorts, named the BUFF (Biomarkers for patients with Undiagnosed pleural eFFusion) cohort (62 with TPE and 194 with non-TPE) and the SIMPLE (a Study Investigating Markers in PLeural Effusion) cohort (33 with TPE and 177 with non-TPE). Receiver operating characteristic (ROC) curve and decision curve were used to measure the diagnostic accuracy of the PF LDH/ADA ratio. The added diagnostic value of the LDH/ADA ratio to ADA was evaluated with net reclassification improvement (NRI) and integrated discrimination improvement (IDI).

resultsThe area under the ROC curves (AUCs) of PF ADA and LDH/ADA ratio in the BUFF cohort were 0.76 and 0.74, respectively. In the SIMPLE cohort, the AUCs of PF ADA and LDH/ADA ratio were 0.80 and 0.85, respectively. The decision curves of PF LDH/ADA and ADA were close in both the BUFF and SIMPLE cohorts. The NRI and IDI analyses did not reveal any added diagnostic value of LDH/ADA to ADA.

conclusionsPF LDH/ADA ratio has moderate diagnostic accuracy for TPE. It does not provide added diagnostic value beyond ADA. The current evidence does not support LDH/ADA ratio for diagnosing TPE.

Indexed as

Pleural EffusionTuberculosis, PleuralAdenosine DeaminaseBiomarkersExudates and TransudatesHumansL-Lactate DehydrogenaseAdenosine DeaminaseBiomarkersL-Lactate DehydrogenaseAdded valueAdenosine deaminaseDiagnostic accuracyLactate dehydrogenaseTuberculous pleural effusion

Identifiers

PMID36402998
PMCPMC9675061
OpenAlexW4309561680

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.