Evidence map›Paper›PMID 37226237›Full record

ArticleBMC medicine2023

Cancer risk following surgical removal of tonsils and adenoids - a population-based, sibling-controlled cohort study in Sweden.

Jinfeng Liang, Yi Huang, Li Yin, Fatemeh Sadeghi, Yanping Yang, Xue Xiao, Hans-Olov Adami, Weimin Ye, Zhe Zhang, Fang Fang

Open access · goldAbstract read
In one paragraph

Article in BMC medicine, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
2.9field-weighted citation impact, top 9% 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

8 citing papers in PubMed, 9 citations in OpenAlex.

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  7. [Long-term effect observation after 10 years of tonsillotomy (Histological analysis of one case of secondary operation)].Lin chuang er bi yan hou tou jing wai ke za zhi = Journal of clinical otorhinolaryngology head and neck surgery · 2024
    Article
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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

10 authors at 4 institutions in 3 countries.

Jinfeng Liang *Department of Otolaryngology-Head & Neck Surgery, First Affiliated Hospital of Guangxi Medical University, 22# Shuangyong Road, Guangxi, 530021, Nanning, China.
Yi Huang *Department of Otolaryngology-Head & Neck Surgery, First Affiliated Hospital of Guangxi Medical University, 22# Shuangyong Road, Guangxi, 530021, Nanning, China.
Li YinDepartment of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden.
Fatemeh SadeghiInstitute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.
Yanping YangDepartment of Otolaryngology-Head & Neck Surgery, First Affiliated Hospital of Guangxi Medical University, 22# Shuangyong Road, Guangxi, 530021, Nanning, China.
Xue XiaoDepartment of Otolaryngology-Head & Neck Surgery, First Affiliated Hospital of Guangxi Medical University, 22# Shuangyong Road, Guangxi, 530021, Nanning, China.
Hans-Olov AdamiDepartment of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden.
Weimin YeDepartment of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden.
Zhe ZhangDepartment of Otolaryngology-Head & Neck Surgery, First Affiliated Hospital of Guangxi Medical University, 22# Shuangyong Road, Guangxi, 530021, Nanning, China. zhangzhe@gxmu.edu.cn.
Fang FangInstitute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.
First Affiliated Hospital of GuangXi Medical University · CNKarolinska Institutet · SEGuangxi Medical University · CNUniversity of Oslo · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundRemoval of tonsils and adenoids is among the most common surgical procedures worldwide. Evidence of increased risk of cancer following such surgery is, however, inconclusive.

methodsWe conducted a population-based, sibling-controlled cohort study of 4,953,583 individuals in Sweden with a follow-up during 1980-2016. History of tonsillectomy, adenotonsillectomy, and adenoidectomy was identified from the Swedish Patient Register whereas incident cases of cancer during follow-up were identified from the Swedish Cancer Register. We used Cox models to calculate hazard ratios (HR) with 95% confidence intervals (CI) of cancer in both a population and a sibling comparison. The sibling comparison was used to assess the potential impact of familial confounding, due to shared genetic or non-genetic factors within a family.

resultsWe found a modestly increased risk for any cancer following tonsillectomy, adenoidectomy, or adenotonsillectomy in both the population (HR 1.10; 95%CI 1.07-1.12) and sibling (HR 1.15; 95%CI 1.10-1.20) comparisons. The association did not differ greatly by type of surgery, age at surgery, or potential indication for surgery, and persisted more than two decades after surgery. An excess risk was consistently observed for cancer of the breast, prostate, thyroid, and for lymphoma in both population and sibling comparisons. A positive association was observed for pancreatic cancer, kidney cancer, and leukemia in the population comparison whereas a positive association was observed for esophageal cancer in the sibling comparison.

conclusionsSurgical removal of tonsils and adenoids is associated with a modestly increased risk of cancer during the decades following the surgery. The association is unlikely attributed to confounding due to shared genetic or non-genetic factors with a family.

Indexed as

AdenoidsKidney NeoplasmsCohort StudiesHumansMalePalatine TonsilSiblingsSwedenAdenoidectomyAdenotonsillectomyCancerRiskSibling comparisonTonsillectomy

Identifiers

PMID37226237
PMCPMC10210283
OpenAlexW4378171961

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.