Evidence map›Paper›PMID 34522659›Full record

ArticleAnnals of maxillofacial surgery

Assessment of Relationship of ABO Blood Groups in Oral Cancer Patients - A Retrospective Study.

Pradhuman Verma, Avinash Kumar, Shantanu Dixit, Kratika Mohan, Nidhi Gupta, Gourab Mandal

Open access · greenAbstract read
In one paragraph

Article in Annals of maxillofacial surgery. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
1.2field-weighted citation impact, top 21% 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

7 citing papers in PubMed, 9 citations in OpenAlex.

  1. Association of ABO and Rhesus Blood Groups With Oral Cancers.Journal of clinical medicine research · 2025
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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

6 authors at 2 institutions in 1 country.

Pradhuman VermaDepartment of Oral Medicine and Radiology/Oral Pathology and Microbiology, Dr. Ziauddin Ahmad Dental College and Hospital, Aligarh Muslim University Campus, Aligarh, Uttar Pradesh, India.
Avinash KumarDepartment of ENT, Noida International Institute of Medical Sciences, Greater Noida, Uttar Pradesh, India.
Shantanu DixitDepartment of Oral Medicine and Radiology, Faculty of Dental Sciences, SGT University, Gurugram, India.
Kratika MohanDepartment of Oral Medicine and Radiology, Institute of Dental Sciences, Bareilly, Uttar Pradesh, India.
Nidhi GuptaDental Surgeon, Combined District Hospital, Auraiya, Uttar Pradesh, India.
Gourab MandalDepartment of Oral and Maxillofacial Surgery, Guru Nanak Institute of Dental Sciences and Research, Kolkata, West Bengal, India.
Sardar Patel Post Graduate Institute of Dental and Medical Sciences · INShree Guru Gobind Singh Tricentenary University · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionIndia is a high-risk region for oropharyngeal cancer (OC) due to high prevalence of tobacco, betel nut, and alcohol and accounts for 30% of all new cases of oral cancer annually. MATERIALS AND

methodsRecords of all 73 diagnosed cases of different types of OC and oropharynx patients were analyzed who reported in "Tobacco cessation center"' of the Institute between January 2017 and December 2019. The patients' demographic details, blood groups, oral habits, and clinicohistological records were obtained from the medical records available in the hospital.

resultsOC incidence was 3.75 cases/year with male-to-female ratio 3.29:1. Mean age was 51.25 ± 13.6 years. The most common site of tumour presentation was mandibular alveolar ridge. Combined use of tobacco/betal nut/alcohol constituted the major cause for the development of oral squamous cell carcinoma (OSCC). Majority patients were presented in Stage II (43.8%). Histopathological reports were suggestive of maximally well-differentiated (52.1%) OSCC. People with blood group A+ve had 3.22 times higher risk of developing OSCC compared to people of other blood groups. DISCUSSION: Male: female ratio was reported higher than in most of other studies. Mandibular alveolus was the most frequent site because most of the patients tend to keep the tobacco quid in the buccal vestibule with close proximity to alveolus. The relative downregulation of glycosyl transferase that is involved in the biosynthesis of A and B antigens as seen in association with tumour development could be the reason for increased OC reported in blood group A subjects.

Indexed as

ABO blood groupsoral cancerstagingtobacco

Identifiers

PMID34522659
PMCPMC8407619
OpenAlexW3183620399

What OpenQuestion holds

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LicenceCC BY-NC-SA
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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.