Evidence map›Paper›PMID 30309850›Full record

ArticleHaematologica2019

Association of anemia with health-related quality of life and survival: a large population-based cohort study.

Hanneke J C M Wouters, Melanie M van der Klauw, Theo de Witte, Reinhard Stauder, Dorine W Swinkels, Bruce H R Wolffenbuttel, Gerwin Huls

Open access · goldAbstract read
In one paragraph

Article in Haematologica, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 81 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
81citing papers in PubMed, 1 pooled it
7.5field-weighted citation impact, top 2% 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

81 citing papers in PubMed, 1 synthesis or guideline pooled it, 157 citations in OpenAlex.

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21 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 4 institutions in 2 countries.

Hanneke J C M WoutersDepartment of Hematology, University Medical Center Groningen, the Netherlands h.j.c.m.wouters@umcg.nl.
Melanie M van der KlauwDepartment of Endocrinology, University Medical Center Groningen, the Netherlands.
Theo de WitteDepartment of Hematology, Radboud University Medical Center, Nijmegen, the Netherlands.
Reinhard StauderDepartment of Internal Medicine V (Hematology and Oncology), Medical University, Innsbruck, Austria.
Dorine W SwinkelsDepartment of Laboratory Medicine, Radboud University Medical Center, Nijmegen, the Netherlands.
Bruce H R WolffenbuttelDepartment of Endocrinology, University Medical Center Groningen, the Netherlands.
Gerwin HulsDepartment of Hematology, University Medical Center Groningen, the Netherlands.
University Medical Center Groningen · NLInnsbruck Medical University · ATRadboud University Medical Center · NLRadboud University Nijmegen · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Anemia is highly prevalent, especially in older individuals. In selected populations, anemia has been reported to be associated with impaired survival and health-related quality of life. However, data on this impact in the general population are rare. Furthermore, discussions on the optimal definition of anemia have not been conclusive. We investigated these issues using survival data, scores from a health-related quality of life questionnaire (RAND-36), and hemoglobin concentration from 138670 subjects, aged 18-93 years, participating in the Lifelines cohort. Anemia was defined according to World Health Organization criteria and was further subclassified in participants over 60 years old. Anemia was present in 5510 (4.0%) of all 138670 subjects and 516 (2.8%) in the 18667 individuals older than 60 years. Anemia had no impact on overall survival and limited impact on health-related quality of life in individuals less than 60 years old. In contrast, in individuals over 60 years old anemia significantly impaired overall survival and health-related quality of life. The lower health-related quality of life was mainly observed in subscales representing physical functioning. Although consensus on the subclassification of anemia is lacking, our data suggest that particularly anemia of chronic inflammation was associated with worse overall survival and decreased health-related quality of life. Multivariate models confirmed that anemia was an independent risk factor for decreased health-related quality of life in older individuals. Finally, women with a hemoglobin concentration between 12.0-13.0 g/dL (considered anemia in men, but not in women) experienced a significantly lower health-related quality of life. This large, prospective, population-based study indicates that anemia is associated with worse overall survival and health-related quality of life in older individuals, but not in younger individuals. The findings of this study challenge the definition of anemia in women over 60 years old, and suggest that the optimal definition of anemia, in the perspective of health-related quality of life, in women over 60 years old should be altered to a hemoglobin concentration below 13.0 g/dL (8.0 mmol/L), which is comparable to that in men.

Indexed as

Quality of LifeAdolescentAdultAgedAged, 80 and overAnemiaFemaleHumansKaplan-Meier EstimateMaleMiddle AgedPopulation SurveillancePrevalencePrognosisRisk FactorsYoung Adult

Identifiers

PMID30309850
PMCPMC6395328
OpenAlexW2897286811

What OpenQuestion holds

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LicenceCC BY-NC
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Registered trials

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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.