Evidence map›Paper›PMID 35390553›Full record

Observational studyThrombosis research2022

Influence of sex on development of thrombosis in patients with COVID-19: From the CLOT-COVID study.

Yugo Yamashita, Sen Yachi, Makoto Takeyama, Yuji Nishimoto, Ichizo Tsujino, Junichi Nakamura, Naoto Yamamoto, Hiroko Nakata, Satoshi Ikeda, Michihisa Umetsu and 14 more

Open access · greenAbstract readMulticenter StudyObservational Study
In one paragraph

Observational study in Thrombosis research, 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
1.6field-weighted citation impact, top 15% 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, 16 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Observational
  5. Sex-specific outcomes in COVID-19: missing pieces of the puzzle.Canadian journal of anaesthesia = Journal canadien d'anesthesie · 2023
    Article
  6. Article
  7. Observational
  8. Article
  9. 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

24 authors at 17 institutions in 1 country.

Yugo YamashitaKyoto University Hospital, Kyoto, Japan. Electronic address: yyamashi@kuhp.kyoto-u.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.
Ichizo TsujinoHokkaido University Hospital, Sapporo, Japan.
Junichi NakamuraHokkaido University Hospital, Sapporo, 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 City University Graduate School of Medicine, Osaka, Japan.
Hirono SatokawaFukushima Medical University, School of Medicine, 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.
CLOT-COVID Study Investigators
Hamamatsu Medical Center · JPHokkaido University Hospital · JPKyoto University Hospital · JPTokyo Yamate Medical Center · JPTsukuba Medical Center Hospital · JPFukushima Medical University · JPFukushima Medical University Hospital · JPHyogo Prefectural Amagasaki General Medical Center · JPMie University Hospital · JPNagasaki University · JPNaval Hospital Yokosuka Japan · JPOsaka City University · JPShikoku Medical Center for Children and Adults · JPSunagawa City Medical Center · JPTohoku University Hospital · JPToho University Ohashi Medical Center · JPYokohama Minami Kyosai Hospital · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionThere has been limited data on the influence of sex on development of thrombosis in patients with coronavirus disease 2019 (COVID-19). MATERIALS AND

methodsThe CLOT-COVID Study was a retrospective, multicenter cohort study enrolling 2894 consecutive hospitalized patients with COVID-19 among 16 centers in Japan from April 2021 to September 2021. We divided the entire cohort into the men (N = 1885) and women (N = 1009) groups.

resultsThere were no significant differences in D-dimer levels at admission between men and women. Men had more severe status of the COVID-19 at admission compared with women (Mild: 57% versus 66%, Moderate: 34% versus 29%, and Severe: 9.1% versus 5.7%, P < 0.001). Men more often received pharmacological thromboprophylaxis than women (47% versus 35%, P < 0.001). During the hospitalization, men more often developed thrombosis than women (2.5% [95%CI, 1.9-3.3%] versus 0.8% [95%CI, 0.4-1.6%], P = 0.001). Men had numerically higher incidences of thrombosis than women in all subgroups of the worst severity of COVID-19 during the hospitalization (Mild: 0.3% versus 0.0%, Moderate: 1.6% versus 1.0%, and Severe: 11.1% versus 4.3%). Even after adjusting confounders in the multivariable logistic regression model, the excess risk of men relative to women remained significant for thrombosis (adjusted OR, 2.51; 95%CI, 1.16-5.43, P = 0.02).

conclusionsIn the current large observational study of patients with COVID-19, men had more severe status of the COVID-19 than women, and the risk of development of thrombosis was higher in men compared with women, which could be helpful in determining the patient-specific optimal management strategies for COVID-19.

Indexed as

COVID-19ThrombosisVenous ThromboembolismAnticoagulantsCohort StudiesFemaleHospitalizationHumansMaleRetrospective StudiesSARS-CoV-2AnticoagulantsCOVID-19SexThrombosis

Identifiers

PMID35390553
PMCPMC8970622
OpenAlexW4226117530

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.