Evidence map›Paper›PMID 34738212›Full record

ArticleWiener klinische Wochenschrift2022

Hematocrit to hemoglobin ratio as a prognostic marker in polycythemia vera.

Ivan Krečak, Marko Lucijanić, Ivan Zekanović, Hrvoje Holik, Martina Morić Perić, Marijana Šupe, Božena Coha, Velka Gverić-Krečak

Abstract read
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In one paragraph

Article in Wiener klinische Wochenschrift, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.5field-weighted citation impact, top 32% 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

4 citing papers in PubMed, 7 citations in OpenAlex.

  1. Observational
  2. Article
  3. Article
  4. Investigation of Two Potential Predictors of Thrombosis Risk in Polycythemia Vera: Hematocrit-to-Hemoglobin Ratio and HALP Score.Clinical and applied thrombosis/hemostasis : official journal of the International Academy of Clinical and Applied Thrombosis/Hemostasis
    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

8 authors at 4 institutions in 1 country.

Ivan KrečakDepartment of Internal Medicine, General Hospital of Šibenik-Knin County, Stjepana Radića 83, 22000, Šibenik, Croatia. krecak.ivan@gmail.com.
Marko LucijanićDivision of Hematology, Department of Internal Medicine, University Hospital Dubrava, Zagreb, Croatia.
Ivan ZekanovićDepartment of Internal Medicine, General Hospital Zadar, Zadar, Croatia.
Hrvoje HolikDepartment of Internal Medicine, 'Dr. Josip Benčević' General Hospital, Slavonski Brod, Croatia.
Martina Morić PerićDepartment of Internal Medicine, General Hospital Zadar, Zadar, Croatia.
Marijana ŠupeDepartment of Internal Medicine, General Hospital of Šibenik-Knin County, Stjepana Radića 83, 22000, Šibenik, Croatia.
Božena CohaDepartment of Internal Medicine, 'Dr. Josip Benčević' General Hospital, Slavonski Brod, Croatia.
Velka Gverić-KrečakDepartment of Internal Medicine, General Hospital of Šibenik-Knin County, Stjepana Radića 83, 22000, Šibenik, Croatia.
Polytechnics of Šibenik · HRCollege of Slavonski Brod · HRUniversity of Zadar · HRUniversity of Zagreb · HR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe hematocrit to hemoglobin ratio (HHR) is frequently used in everyday practice to measure hemoconcentration; however, clinical associations of HHR in the context of polycythemia vera (PV) have not been investigated so far. PATIENTS AND

methodsWe retrospectively assessed HHR at the time of diagnosis in 107 PV and 40 secondary polycythemia (SP) patients from three community hospitals.

resultsMedian HHR was higher in PV than in SP patients (3.131 vs. 2.975, p = 0.041). Among PV patients, higher HHR correlated with splenomegaly, higher total leukocyte and absolute granulocyte counts, higher red blood cell counts, lower hemoglobin, higher red blood cell distribution width, lower mean corpuscular hemoglobin and lower ferritin levels, whereas in SP patients higher HHR correlated with older age, female sex and lower hemoglobin (p < 0.050 for all analyses). Using the receiver operating curve analysis-defined cut-off points, higher HHR in PV was associated with a shorter time to thrombosis (hazard ratio-HR 5.20, p = 0.022) independently of high-risk disease status (HR 4.48, p = 0.034) and shorter overall survival (HR 6.69, p = 0.009) independently of leukocytosis (HR 4.48, P = 0.034) and the absence of aspirin use (HR 15.53, p < 0.001).

conclusionHigher HHR may represent iron deficiency and a stronger clonal myeloproliferation in PV and could provide additional prognostic information to the classical risk assessment.

Indexed as

Polycythemia VeraFemaleHematocritHemoglobinsHumansMalePrognosisRetrospective StudiesHemoglobinsBlood viscosityHemoconcentrationMyeloproliferative neoplasmsSurvivalThrombosis

Identifiers

PMID34738212
OpenAlexW3210003788

What OpenQuestion holds

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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.