Evidence map›Paper›PMID 32775603›Full record

ArticleInternational journal of cardiology. Heart & vasculature2020

Relationship of anemia and clinical outcome in heart failure patients with preserved versus reduced ejection fraction in a rural area of Thailand.

Kittayaporn Chairat, Wipharak Rattanavipanon, Krittika Tanyasaensook, Busba Chindavijak, Suvatna Chulavatnatol, Surakit Nathisuwan

Open access · goldAbstract read
In one paragraph

Article in International journal of cardiology. Heart & vasculature, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 2 pooled it
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

10 citing papers in PubMed, 2 syntheses or guidelines pooled it, 11 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Review
  4. Article
  5. Anemia in heart failure: evidence from a three-year cross-sectional study in Sudan.Journal of pharmaceutical health care and sciences · 2025
    Article
  6. Observational
  7. The treatment of chronic anemia in heart failure: a global approach.Clinical research in cardiology : official journal of the German Cardiac Society · 2024
    Review
  8. Observational
  9. Article
  10. 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

6 authors at 1 institution in 1 country.

Kittayaporn ChairatBuriram Hospital, 1 Road Railway Station, Muang District, Buriram 31000, Thailand.
Wipharak RattanavipanonClinical Pharmacy Division, Department of Pharmacy, Faculty of Pharmacy, Mahidol University, 447 Sri-ayutthaya Road, Phyathai, Ratchathewi, Bangkok 10400, Thailand.
Krittika TanyasaensookClinical Pharmacy Division, Department of Pharmacy, Faculty of Pharmacy, Mahidol University, 447 Sri-ayutthaya Road, Phyathai, Ratchathewi, Bangkok 10400, Thailand.
Busba ChindavijakClinical Pharmacy Division, Department of Pharmacy, Faculty of Pharmacy, Mahidol University, 447 Sri-ayutthaya Road, Phyathai, Ratchathewi, Bangkok 10400, Thailand.
Suvatna ChulavatnatolClinical Pharmacy Division, Department of Pharmacy, Faculty of Pharmacy, Mahidol University, 447 Sri-ayutthaya Road, Phyathai, Ratchathewi, Bangkok 10400, Thailand.
Surakit NathisuwanClinical Pharmacy Division, Department of Pharmacy, Faculty of Pharmacy, Mahidol University, 447 Sri-ayutthaya Road, Phyathai, Ratchathewi, Bangkok 10400, Thailand.
Mahidol University · TH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundHeart failure (HF) has become a significant health burden in developing countries where anemia is highly prevalent. Limited data exists on the effects of anemia on HF in these population.

methodsA retrospective observational study was conducted in all adult patients hospitalized due to HF at Buriram Hospital in Thailand, during July 2010 to June 2015. Survival analysis was performed to evaluate the impact of anemia on 1- year all-cause mortality for the overall cohort, patients with HF with reduced ejection fraction (HFrEF) and preserved ejection fraction (HFpEF).

resultsA total of 414 HF patients including 287 HFpEF patients (69.3%) and 127 HFrEF patients (30.7%) were included in our analysis. Mean age was 62.51 ± 14.89 years, with 55% female. Overall prevalence of anemia in HF was 62.6% (259 patients). One-year all-cause mortality was significantly higher in patients with anemia than in non-anemia groups (20.08% vs 12.26%, p = 0.041). When analyzed based on types of HF, anemia significantly increased mortality risk in HFpEF group [adjusted hazard ratio (HR) 2.667, 95%CI, 1.216-5.853, p = 0.014] but not with HFrEF group (adjusted HR 0.901, 95%CI, 0.376-2.155, p = 0.804). The mortality of anemic patients who were left untreated was significantly higher than those who were treated (adjusted HR 2.13, 95%CI, 1.13-3.99, p = 0.027).

conclusionAnemia significantly increased mortality in HF patients, especially among HFpEF. Attempts to identify, diagnose and manage anemia should be integrated in HF care plan in developing countries with high prevalence of anemia.

Indexed as

AnemiaHeart failureOutcome

Identifiers

PMID32775603
PMCPMC7399103
OpenAlexW3046854334

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.