Evidence map›Paper›PMID 36127738›Full record

ArticleThrombosis journal2022

Incidence, risk factors, and clinical impact of major bleeding in hospitalized patients with COVID-19: a sub-analysis of the CLOT-COVID Study.

Junichi Nakamura, Ichizo Tsujino, Sen Yachi, Makoto Takeyama, Yuji Nishimoto, Satoshi Konno, Naoto Yamamoto, Hiroko Nakata, Satoshi Ikeda, Michihisa Umetsu and 15 more

Open access · goldAbstract read
In one paragraph

Article in Thrombosis journal, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
1.3field-weighted citation impact, top 18% 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

7 citing papers in PubMed, 13 citations in OpenAlex.

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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

25 authors at 17 institutions in 1 country.

Junichi NakamuraDivision of Respiratory and Cardiovascular Innovative Research, Faculty of Medicine, Hokkaido University, North 14, West 5, Kita-ku, Sapporo, 060-8648, Japan.
Ichizo TsujinoDivision of Respiratory and Cardiovascular Innovative Research, Faculty of Medicine, Hokkaido University, North 14, West 5, Kita-ku, Sapporo, 060-8648, Japan. itsujino@med.hokudai.ac.jp.
Sen YachiJapan Community Health Care Organization Tokyo Shinjuku Medical Center, Tokyo, Japan.
Makoto TakeyamaJapan Community Health Care Organization Tokyo Shinjuku Medical Center, Tokyo, Japan.
Yuji NishimotoHyogo Prefectural Amagasaki General Medical Center, Amagasaki, Japan.
Satoshi KonnoDivision of Respiratory and Cardiovascular Innovative Research, Faculty of Medicine, Hokkaido University, North 14, West 5, Kita-ku, Sapporo, 060-8648, Japan.
Naoto YamamotoHamamatsu Medical Center, Hamamatsu, Japan.
Hiroko NakataYokosuka General Hospital Uwamachi, Yokosuka, Japan.
Satoshi IkedaNagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.
Michihisa UmetsuTohoku University Hospital, Sendai, Japan.
Shizu AikawaTsukuba Medical Center Hospital, Tsukuba, Japan.
Hiroya HayashiOsaka Metropolitan University Graduate School of Medicine, Osaka, Japan.
Hirono SatokawaFukushima Red Cross Hospital, Fukushima, Japan.
Yoshinori OkunoKyoto University Hospital, Kyoto, Japan.
Eriko IwataNankai Medical Center Japan Community Health Care Organization, Saiki, Japan.
Yoshito OgiharaMie University Hospital, Tsu, Japan.
Nobutaka IkedaToho University Ohashi Medical Center, Tokyo, Japan.
Akane KondoShikoku Medical Center for Children and Adults, Zentsuji, Japan.
Takehisa IwaiTsukuba Vascular Center, Ibaraki, Japan.
Norikazu YamadaKuwana City Medical Center, Kuwana, Japan.
Tomohiro OgawaFukushima Daiich Hospital, Fukushima, Japan.
Takao KobayashiHamamatsu Medical Center, Hamamatsu, Japan.
Makoto MoYokohama Minami Kyosai Hospital, Yokohama, Japan.
Yugo YamashitaKyoto University Hospital, Kyoto, Japan.
CLOT-COVID Study Investigators
Hokkaido University · JPHamamatsu Medical Center · JPKyoto University Hospital · JPTokyo Yamate Medical Center · JPTsukuba Medical Center Hospital · JPFukushima Medical University Hospital · JPHyogo Prefectural Amagasaki General Medical Center · JPMie University Hospital · JPNagasaki University · JPNaval Hospital Yokosuka Japan · JPOsaka Metropolitan UniversityShikoku Medical Center for Children and Adults · JPSunagawa City Medical Center · JPTohoku University Hospital · JPToho University Ohashi Medical Center · JPTokushima Red Cross Hospital · JPYokohama Minami Kyosai Hospital · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe coronavirus disease 2019 (COVID-19) causes extensive coagulopathy and a potential benefit of anticoagulation therapy has been documented for prevention of thromboembolic events. Bleeding events has also been reported as a notable complication; whereas, the incidence, risks, and clinical impact of bleeding remain unclear.

methodThe CLOT-COVID Study was a nationwide, retrospective, multicenter cohort study on consecutive hospitalized patients with COVID-19 in Japan between April 2021 and September 2021. In this sub-analysis, we compared the characteristics of patients with and without major bleeding; moreover, we examined the risk factors for and clinical impact of bleeding events.

resultsAmong 2882 patients with COVID-19, 57 (2.0%) had major bleeding. The incidence of major bleeding increased with COVID-19 severity as follows: 0.5%, 2.3%, and 12.3% in patients with mild, moderate, and severe COVID-19, respectively. COVID-19 severity, history of major bleeding, and anticoagulant type/dose were independently and additively associated with the bleeding incidence. Compared with patients without major bleeding, those with major bleeding exhibited a longer duration of hospitalization (9 [6-14] vs 28 [19-43] days, P < 0.001) and higher mortality during hospitalization (4.9% vs. 35.1%, P < 0.001).

conclusionsIn the real-world clinical practice, the incidence of major bleeding was not uncommon, especially in patients with severe COVID-19. Independent risk factors for major bleeding included history of major bleeding, COVID-19 severity, and anticoagulant use, which could be associated with poor clinical outcomes including higher mortality. Precise recognition of the risks for bleeding may be helpful for an optimal use of anticoagulants and for better outcomes in patients with COVID-19.

Indexed as

AnticoagulantBleedingCOVID-19HospitalizationMortalitySeverity

Identifiers

PMID36127738
PMCPMC9485792
OpenAlexW4296416907

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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.