Evidence map›Paper›PMID 28510633›Full record

Observational studyClinical infectious diseases : an official publication of the Infectious Diseases Society of America2017

Obesity and Diabetes as Risk Factors for Severe Plasmodium falciparum Malaria: Results From a Swedish Nationwide Study.

Katja Wyss, Andreas Wångdahl, Maria Vesterlund, Ulf Hammar, Saduddin Dashti, Pontus Naucler, Anna Färnert

Registry-linked trialOpen access · hybridAbstract readObservational Study
In one paragraph

Observational study in Clinical infectious diseases : an official publication of the Infectious Diseases Society of America, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05685875 (Malaria, Diabetes and Metabolic Syndrome), which is not on this map. Cited by 38 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed, 4 pooled it
6.0field-weighted citation impact, top 4% 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.

NCT05685875 unknown statusnot on this mapstarted 2022, after this paper: background citation

Malaria, Diabetes and Metabolic Syndrome: Investigating the Double Burden of Diseases in Cameroon

TypeobservationalSponsorKarolinska InstitutetRan2022 to 2023Enrolled300ConditionsDiabetes Mellitus, Type 2, Obesity, Metabolic Syndrome, Severe MalariaArmsdiabetes
3 · Its place in the literature

Who cites it

38 citing papers in PubMed, 4 syntheses or guidelines pooled it, 79 citations in OpenAlex.

  1. Pooled it
  2. Deaths From Plasmodium knowlesi Malaria: Case Series and Systematic Review.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2019
    Pooled it
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  19. Comorbidities involving parasitic diseases: A look at the benefits and complications.Experimental biology and medicine (Maywood, N.J.) · 2022
    Review
  20. Relapse of Plasmodium vivax and Plasmodium ovale Malaria With and Without Primaquine Treatment in a Nonendemic Area.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2022
    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

7 authors at 2 institutions in 1 country.

Katja WyssUnit of Infectious Diseases, Department of Medicine Solna, Karolinska Institutet.
Andreas WångdahlUnit of Infectious Diseases, Department of Medicine Solna, Karolinska Institutet.
Maria VesterlundUnit of Infectious Diseases, Department of Medicine Solna, Karolinska Institutet.
Ulf HammarUnit of Biostatistics, Department of Epidemiology, Institute for Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.
Saduddin DashtiUnit of Infectious Diseases, Department of Medicine Solna, Karolinska Institutet.
Pontus NauclerUnit of Infectious Diseases, Department of Medicine Solna, Karolinska Institutet.
Anna FärnertUnit of Infectious Diseases, Department of Medicine Solna, Karolinska Institutet.
Karolinska Institutet · SEKarolinska University Hospital · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundNoncommunicable diseases and obesity are increasing in prevalence globally, also in populations at risk of malaria. We sought to investigate if comorbidity, in terms of chronic diseases and obesity, is associated with severe Plasmodium falciparum malaria.

methodsWe performed a retrospective observational study in adults (≥18 years of age) diagnosed with malaria in Sweden between January 1995 and May 2015. We identified cases through the surveillance database at the Public Health Agency of Sweden and reviewed clinical data from 18 hospitals. Multivariable logistic regression was used to assess associations between comorbidities and severe malaria.

resultsAmong 937 adults (median age, 37 years; 66.5% were male), patients with severe malaria had higher prevalence of chronic diseases (28/92 [30.4%]) compared with nonsevere cases (151/845 [17.9%]) (P = .004). Charlson comorbidity score ≥1 was associated with severe malaria (adjusted odds ratio [aOR], 2.63 [95% confidence interval {CI}, 1.45-4.77), as was diabetes among individual diagnoses (aOR, 2.98 [95% CI, 1.25-7.09]). Median body mass index was higher among severe (29.3 kg/m2) than nonsevere cases (24.7 kg/m2) (P < .001). Obesity was strongly associated with severe malaria, both independently (aOR, 5.58 [95% CI, 2.03-15.36]) and in combination with an additional metabolic risk factor (hypertension, dyslipidemia, or diabetes) (aOR, 6.54 [95% CI, 1.87-22.88]). The associations were observed among nonimmune travelers as well as immigrants from endemic areas.

conclusionsComorbidities, specifically obesity and diabetes, are previously unidentified risk factors for severe malaria in adults diagnosed with P. falciparum. Noncommunicable diseases should be considered in the acute management and prevention of malaria.

Indexed as

Body Mass IndexAdolescentAdultAgedAged, 80 and overComorbidityDiabetes MellitusFemaleHumansMalaria, FalciparumMaleMiddle AgedObesityRetrospective StudiesRisk FactorsSeverity of Illness Indexcomorbiditydiabetesnoncommunicable diseasesobesitysevere malaria

Identifiers

PMID28510633
PMCPMC5848256
OpenAlexW2615057170

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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.