Evidence map›Paper›PMID 33394360›Full record

Observational studyCardiovascular drugs and therapy2022

The Association of Low Molecular Weight Heparin Use and In-hospital Mortality Among Patients Hospitalized with COVID-19.

Lan Shen, Lin Qiu, Dong Liu, Li Wang, Hengye Huang, Heng Ge, Ying Xiao, Yi Liu, Jingjin Jin, Xiulan Liu and 4 more

Abstract readMulticenter StudyObservational Study
In one paragraph

Observational study in Cardiovascular drugs and therapy, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 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

14 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Efficacy and Safety of Direct Oral Anticoagulants Compared With Heparin for Preventing Thromboembolism in Hospitalized Patients With COVID-19: A Systematic Review and Meta-Analysis.Clinical and applied thrombosis/hemostasis : official journal of the International Academy of Clinical and Applied Thrombosis/Hemostasis
    Pooled it
  2. Observational
  3. Review
  4. Review
  5. Review
  6. ISTH guidelines for antithrombotic treatment in COVID-19.Journal of thrombosis and haemostasis : JTH · 2022
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Review
  14. 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

14 authors.

Lan Shen *Department of Cardiology, Shanghai Chest Hospital, Shanghai Jiaotong University, Huaihai Road, Shanghai, 200030, China.ORCID 0000-0002-1579-4013
Lin Qiu *Department of Pharmacy, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Ave., Wuhan, 430030, China.
Dong Liu *Department of Pharmacy, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Ave., Wuhan, 430030, China.
Li Wang *Department of Geriatrics, Shanghai Renji Hospital, Shanghai Jiaotong University, School of Medicine, Shanghai, 200127, China.
Hengye HuangSchool of Public Health, Shanghai Jiaotong University, School of Medicine, Shanghai, 200025, China.
Heng GeDepartment of Cardiology, Shanghai Renji Hospital, Shanghai Jiaotong University, School of Medicine, Shanghai, 200127, China.
Ying XiaoDepartment of Pharmacy, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Ave., Wuhan, 430030, China.
Yi LiuDepartment of Pharmacy, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Ave., Wuhan, 430030, China.
Jingjin JinDepartment of Pharmacy, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Ave., Wuhan, 430030, China.
Xiulan LiuDepartment of Pharmacy, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Ave., Wuhan, 430030, China.
Dao Wen WangDivision of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Ave., Wuhan, 430030, China.
Eric D PetersonDuke Clinical Research Institute, 300 W Morgan St, Durham, NC, 27701, USA.
Ben HeDepartment of Cardiology, Shanghai Chest Hospital, Shanghai Jiaotong University, Huaihai Road, Shanghai, 200030, China. heben241@126.com.
Ning ZhouDivision of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Ave., Wuhan, 430030, China. zhouning@tjh.tjmu.edu.cn.

Funding

National Natural Science Foundation of China 81570261National Natural Science Foundation of China 81900308School of Medicine, Shanghai Jiao Tong University DLY201512
6 · The paper itself

Abstract

purposeTo determine the association between low molecular weight heparin (LMWH) use and mortality in hospitalized COVID-19 patients.

methodsWe conducted a retrospective study of patients consecutively enrolled from two major academic hospitals exclusively for COVID-19 in Wuhan, China, from January 26, 2020, to March 26, 2020. The primary outcome was adjusted in-hospital mortality in the LMWH group compared with the non-LMWH group using the propensity score.

resultsOverall, 525 patients with COVID-19 enrolled with a median age of 64 years (IQR 19), and 49.33% men. Among these, 120 (22.86%) were treated with LMWH. Compared with the non-LMWH group, the LMWH group was more likely to be older and male; had a history of hypertension, diabetes, coronary heart disease (CHD), or stroke; and had more severe COVID-19 parameters such as higher inflammatory cytokines or D-dimer. Compared with non-LMWH group, LMWH group had a higher unadjusted in-hospital mortality rate (21.70% vs. 11.10%; p = 0.004), but a lower adjusted mortality risk (adjusted odds ratio [OR], 0.20; 95% CI, 0.09-0.46). A propensity score-weighting analysis demonstrated similar findings (adjusted OR, 0.18; 95% CI, 0.10-0.30). Subgroup analysis showed a significant survival benefit among those who were severely (adjusted OR, 0.07; 95% CI, 0.02-0.23) and critically ill (adjusted OR, 0.32; 95% CI, 0.15-0.65), as well as among the elderly patients' age > 65, IL-6 > 10 times upper limit level, and D-dimer > 5 times upper limit level.

conclusionsAmong hospitalized COVID-19 patients, LMWH use was associated with lower all-cause in-hospital mortality than non-LMWH users. The survival benefit was particularly significant among more severely ill patients.

Indexed as

COVID-19 Drug TreatmentHospitalizationAgedAged, 80 and overAnticoagulantsBlood CoagulationChinaComorbidityCOVID-19FemaleHemorrhageHeparin, Low-Molecular-WeightHospital MortalityHumansMaleMiddle AgedAnticoagulantsHeparin, Low-Molecular-WeightCOVID-19In-hospital mortalityLMWH

Identifiers

PMID33394360
PMCPMC7779648

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.