Evidence map›Paper›PMID 33680938›Full record

ArticleFrontiers in oncology2020

The Impact of Comorbidity on Survival in Patients With Head and Neck Squamous Cell Carcinoma: A Nationwide Case-Control Study Spanning 35 Years.

Eva Kristine Ruud Kjær, Jakob Schmidt Jensen, Kathrine Kronberg Jakobsen, Giedrius Lelkaitis, Irene Wessel, Christian von Buchwald, Christian Grønhøj

Abstract read
In one paragraph

Article in Frontiers in oncology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

21 citing papers in PubMed, 1 synthesis or guideline pooled it.

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  10. Validation of the prognostic model "oncologiq palliative" for head and neck cancer patients.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2025
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  12. In Reference toLaryngoscope investigative otolaryngology · 2024
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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.

Eva Kristine Ruud KjærDepartment of Otorhinolaryngology, Head and Neck Surgery and Audiology, University of Copenhagen, Rigshospitalet, Copenhagen, Denmark.
Jakob Schmidt JensenDepartment of Otorhinolaryngology, Head and Neck Surgery and Audiology, University of Copenhagen, Rigshospitalet, Copenhagen, Denmark.
Kathrine Kronberg JakobsenDepartment of Otorhinolaryngology, Head and Neck Surgery and Audiology, University of Copenhagen, Rigshospitalet, Copenhagen, Denmark.
Giedrius LelkaitisDepartment of Pathology, University of Copenhagen, Rigshospitalet, Copenhagen, Denmark.
Irene WesselDepartment of Otorhinolaryngology, Head and Neck Surgery and Audiology, University of Copenhagen, Rigshospitalet, Copenhagen, Denmark.
Christian von BuchwaldDepartment of Otorhinolaryngology, Head and Neck Surgery and Audiology, University of Copenhagen, Rigshospitalet, Copenhagen, Denmark.
Christian GrønhøjDepartment of Otorhinolaryngology, Head and Neck Surgery and Audiology, University of Copenhagen, Rigshospitalet, Copenhagen, Denmark.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundComorbidity is presumed to impact survival of head and neck squamous cell cancer (HNSCC) patients. However, the prevalence and prognostic impact of comorbidity in these patients is not yet well established. The aim of this study is to outline the comorbidity burden of HNSCC patients and investigate the relation to overall survival and cancer-specific mortality.

methodsThe comorbidity burden of patients registered with HNSCC in the Danish Cancer Registry between 1980 and 2014 was evaluated based on the Charlson Comorbidity Index (CCI). Patients' risks of comorbid conditions compared to age- and gender-matched controls were estimated by odds ratios (OR). The impact of comorbidity on overall survival and cancer-specific mortality was evaluated by Cox regression and Kaplan-Meier survival analysis.

resultsA total of 25,388 HNSCC patients were included (72.5% male; mean age 63.2 years at diagnosis; median follow-up 3.0 years). CCI at diagnosis was significantly higher in patients compared to controls (

conclusionHNSCC patients' comorbidity burden was significantly greater compared to the general population and increased comorbidity was correlated with increased cancer-related mortality.

Indexed as

Charlson Age Comorbidity Indexcomorbidepidemiologyhead and neck cancersurvival

Identifiers

PMID33680938
PMCPMC7928275

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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.