Evidence map›Paper›PMID 41204325›Full record

Observational studyRadiation oncology (London, England)2025

Prevalence of late xerostomia and hyposalivation with associated risk factors in survivors of head and neck cancer after radiotherapy: a multi-centric cross-sectional study.

Asmaa Abou-Bakr, Fatma E A Hassanein, Hany William, Suzan S Ibrahim

Abstract readMulticenter StudyObservational Study
In one paragraph

Observational study in Radiation oncology (London, England), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing 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

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

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  12. Improving Survival Prediction of Head and Neck Cancer Patients by Modeling Long-term Symptom Burden.Proceedings. IEEE International Conference on Healthcare Informatics · 2026
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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

4 authors.

Asmaa Abou-BakrOral Medicine and Periodontology, Faculty of Dentistry, Galala University, Suez, Egypt. asmaa.abdalraouf@gu.edu.eg.ORCID http://orcid.org/0000-0001-5069-8257
Fatma E A HassaneinOral Medicine, Periodontology, and Oral Diagnosis, Faculty of Dentistry, King Salman International University, El Tur, South Sinai, Egypt.
Hany WilliamRadiation Oncology, Ahmed Maher Teaching Hospital, Cairo, Egypt.
Suzan S IbrahimOral Medicine and Periodontology, Faculty of Dentistry, Ain Shams University, Cairo, Egypt.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesThis study aimed to assess the prevalence and risk factors associated with late xerostomia and hyposalivation in head and neck cancer (HNC) patients after radiotherapy (RT). MATERIALS AND

methodsAn observational, multicentric cross-sectional study was conducted on 260 HNC patients attending various radiation centers for follow up 1-year post-treatment. Clinical assessments included the Subjective Dry Mouth Score (SXI), Clinical Oral Dryness Score (CODS), and Unstimulated Salivary Flow Rate (UWS).

resultsXerostomia was reported by 78% of patients, with higher severity in those over 50 years (Mean ± SD: 13.53 ± 1.09). Women showed lower salivary flow (UWS: r = 0.556, p < 0.0001) and higher xerostomia scores (SXI: r = 0.337, CODS: r = 0.359) than men. Tumor site correlated strongly with xerostomia (SXI: r = 0.894, p < 0.001), with oral cavity tumors showing more severe effects than nasopharyngeal tumors. Higher RT dose and fraction were negatively associated with UWS (r = -0.537, p < 0.0001) and positively correlated with SXI (r = 0.293) and CODS (r = 0.405, p < 0.0001). The regression models showed that xerostomia severity is significantly predicted by advanced tumor stage, female gender, older age, and higher radiation dose exposure.

conclusionsThe study reveals a high prevalence of xerostomia and hyposalivation among HNC survivors. Increased xerostomia severity and decreased salivary flow were significantly associated with advanced tumor stage, higher radiation doses, and concurrent chemoradiotherapy. CLINICAL RELEVANCE: Understanding risk factors can guide early interventions and personalized management to enhance long-term oral health outcomes.

Indexed as

Cancer SurvivorsHead and Neck NeoplasmsRadiation InjuriesRadiotherapyXerostomiaAdultAgedAged, 80 and overCross-Sectional StudiesFemaleHumansMaleMiddle AgedPrevalencePrognosisRisk FactorsCancerDry mouthHead and neckHyposalivationRadiotherapyXerostomia

Identifiers

PMID41204325
PMCPMC12593948

What OpenQuestion holds

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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.