Evidence map›Paper›PMID 33300312›Full record

ArticleJournal of gynecologic oncology2021

Radiotherapy combined with chemotherapy increases the risk of herpes zoster in patients with gynecological cancers: a nationwide cohort study.

Peng Yi Lee, Jung Nien Lai, Shang Wen Chen, Ying Chun Lin, Lu Ting Chiu, Yu Ting Wei

Open access · diamondAbstract read
In one paragraph

Article in Journal of gynecologic oncology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 1 pooled it
0.4field-weighted citation impact, top 33% 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

6 citing papers in PubMed, 1 synthesis or guideline pooled it, 5 citations in OpenAlex.

  1. Pooled it
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  3. Review
  4. Article
  5. Article
  6. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 1 country.

Peng Yi LeeDepartment of Radiation Oncology, China Medical University Hospital, Taichung, Taiwan.ORCID 0000-0002-4572-7188
Jung Nien LaiSchool of Chinese Medicine, College of Chinese Medicine, China Medical University, Taichung, Taiwan.ORCID 0000-0003-3887-6086
Shang Wen ChenDepartment of Radiation Oncology, China Medical University Hospital, Taichung, Taiwan.ORCID 0000-0001-7480-2864
Ying Chun LinDepartment of Radiation Oncology, China Medical University Hospital, Taichung, Taiwan.ORCID 0000-0001-7554-2427
Lu Ting ChiuManagement Office for Health Data, China Medical University Hospital, Taichung, Taiwan.ORCID 0000-0003-3980-0809
Yu Ting WeiPreventive Medicine Center, Taichung Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Taichung, Taiwan. i54941433@gmail.com.ORCID 0000-0002-0338-085X
China Medical University · TWTaipei Tzu Chi Hospital · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThis study aimed to determine the effect of radiotherapy (RT) on the risk of herpes zoster (HZ) in patients with gynecological cancers via a nationwide population-based study.

methodsBased on patient data obtained from the National Health Insurance Research Database, 1928 gynecological cancer patients were identified with 1:1 matching for RT and non-RT cohorts by age, index date, and cancer type. Another cohort consisting of 964 non-cancer individuals matched was used as normal control. The incidence of HZ was compared between cancer patients with and without RT. Age, comorbidities, cancer-related surgery and chemotherapy (CT), and cancer type were adjusted as confounders.

resultsThe risk of HZ in cancer patients was higher than that of non-cancer individuals (14.23 versus 8.34 per 1,000 person-years [PY], the adjusted hazard ratio [aHR]=1.38, p=0.044). In the cancer population, the incidence of HZ for the RT and non-RT cohorts was 20.55 versus 10.23 per 1,000 PY, respectively (aHR=1.68, p=0.009). Age >50 years was an independent factor for developing HZ. The 5-year actuarial incidence for patients receiving neither RT nor CT, RT alone, CT alone, and combined modalities was 5.4%, 6.9%, 3.7%, and 9.9%, respectively (p<0.001). In the RT cohort, the risk rose rapidly in the first year, becoming steady thereafter.

conclusionThis population-based study showed that gynecological cancer patients receiving RT combined with CT had the highest cumulative risk of HZ. Health care professionals should be aware of the potential toxicities.

Indexed as

Herpes ZosterNeoplasmsCohort StudiesHerpesvirus 3, HumanHumansIncidenceMiddle AgedRetrospective StudiesChemotherapyCohort StudyGynecologic NeoplasmsHerpes ZosterRadiotherapy

Identifiers

PMID33300312
PMCPMC7930445
OpenAlexW3107987927

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.