Evidence map›Paper›PMID 31988231›Full record

ArticleBMJ open2020

Sex difference in incidence of gastric cancer: an international comparative study based on the Global Burden of Disease Study 2017.

Lixia Lou, Linyan Wang, Yaoyi Zhang, Guofeng Chen, Lele Lin, Xiaoli Jin, Yi Huang, Jian Chen

Open access · goldAbstract readComparative Study
In one paragraph

Article in BMJ open, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 64 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
64citing papers in PubMed, 1 pooled it
11.8field-weighted citation impact, top 1% 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

64 citing papers in PubMed, 1 synthesis or guideline pooled it, 114 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Updating the Prevalence ofJournal of clinical medicine · 2026
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  5. Observational
  6. Review
  7. The descriptive epidemiology of gastric cancer in Afghanistan: a population-based cancer registry, 2018-2020.Gastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association · 2026
    Article
  8. Gastrointestinal cancers in women: The role of sex hormones.Indian journal of gastroenterology : official journal of the Indian Society of Gastroenterology · 2026
    Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Impact of adjuvant therapy on outcomes of cancer of the stomach and gastroesophageal junction in the real-world.Gastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association · 2025
    Article
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4 more citing papers are in PubMed but not listed here.

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

8 authors at 1 institution in 1 country.

Lixia LouDepartment of Ophthalmology, Zhejiang University School of Medicine Second Affiliated Hospital, Hangzhou, China.
Linyan WangDepartment of Ophthalmology, Zhejiang University School of Medicine Second Affiliated Hospital, Hangzhou, China.
Yaoyi ZhangDepartment of General Surgery, Zhejiang University School of Medicine Second Affiliated Hospital, Hangzhou, China.
Guofeng ChenDepartment of General Surgery, Zhejiang University School of Medicine Second Affiliated Hospital, Hangzhou, China.
Lele LinDepartment of General Surgery, Zhejiang University School of Medicine Second Affiliated Hospital, Hangzhou, China.
Xiaoli JinDepartment of General Surgery, Zhejiang University School of Medicine Second Affiliated Hospital, Hangzhou, China.
Yi HuangDepartment of General Surgery, Zhejiang University School of Medicine Second Affiliated Hospital, Hangzhou, China.
Jian ChenDepartment of General Surgery, Zhejiang University School of Medicine Second Affiliated Hospital, Hangzhou, China zrchenjian@zju.edu.cn.ORCID 0000-0003-3953-6091
Second Affiliated Hospital of Zhejiang University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo investigate sex difference in global gastric cancer incidence by year, age and socioeconomical status.

designAn international comparative study.

settingWe obtained the global and national sex-specific incidence of gastric caner by year and age from the Global Burden of Disease Study 2017. The human development index (HDI) in 2017 as an indicator of national socioeconomical status was extracted from the Human Development Report.

main outcome measuresSex-specific incidence of gastric cancer was compared by year and age at the global level. Linear regression analyses were performed to explore socioeconomic-associated sex difference in gastric cancer incidence.

resultsDespite declining incidence of global gastric cancer in both sexes between 1990 and 2017, relative sex difference showed an increasing trend, with male to female ratios of age-standardised incidence rates (ASRs) rising from 1.86 to 2.20. Sex difference was almost negligible under 45 years of age and relative difference maximised in the age range of 65-69 years with male to female ratios of ASRs being 2.74. Both absolute sex difference (standardised β=0.256, p<0.001) and relative difference (standardised β=0.387, p<0.001) in ASRs were positively associated with HDI.

conclusionsThis study revealed that decreasing incidence of global gastric cancer was accompanied by widening sex difference in the past few decades. Men always had higher incidence than women. Greater sex difference was found in older age and in more developed countries. These findings highlight the importance of making sex-sensitive health policy to cope with the global gastric cancer burden.

Indexed as

Global HealthAdolescentAdultAgedFemaleGender IdentityGlobal Burden of DiseaseHumansIncidenceMaleMiddle AgedSex DistributionSex FactorsStomach NeoplasmsYoung Adultepidemiologygastrointestinal tumourshealth policy

Identifiers

PMID31988231
PMCPMC7044958
OpenAlexW3002547255

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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.