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

Objectives To investigate sex difference in global gastric cancer incidence by year, age and socioeconomical status.Design An international comparative study.Setting We obtained the global and national sex-specific incidence of gastric caner by year and age from the Global Burden of Disease Study 20...

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Main Authors: Lixia Lou, Linyan Wang, Yaoyi Zhang, Guofeng Chen, Lele Lin, Xiaoli Jin, Yi Huang
Format: Article
Language:English
Published: BMJ Publishing Group 2020-01-01
Series:BMJ Open
Online Access:https://bmjopen.bmj.com/content/10/1/e033323.full
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author Lixia Lou
Linyan Wang
Yaoyi Zhang
Guofeng Chen
Lele Lin
Xiaoli Jin
Yi Huang
author_facet Lixia Lou
Linyan Wang
Yaoyi Zhang
Guofeng Chen
Lele Lin
Xiaoli Jin
Yi Huang
author_sort Lixia Lou
collection DOAJ
description Objectives To investigate sex difference in global gastric cancer incidence by year, age and socioeconomical status.Design An international comparative study.Setting We 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 measures Sex-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.Results Despite 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.Conclusions This 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.
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spelling doaj-art-fba0dd7ce48a4b53864ab1e3822557c32024-12-07T04:55:09ZengBMJ Publishing GroupBMJ Open2044-60552020-01-0110110.1136/bmjopen-2019-033323Sex difference in incidence of gastric cancer: an international comparative study based on the Global Burden of Disease Study 2017Lixia Lou0Linyan Wang1Yaoyi Zhang2Guofeng Chen3Lele Lin4Xiaoli Jin5Yi Huang6Eye Center, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang Provincial Key Laboratory of Ophthalmology, Zhejiang Provincial Clinical Research Center for Eye Diseases, Zhejiang Provincial Engineering Institute on Eye Diseases, Hangzhou, Zhejiang, ChinaDepartment of Pediatric General Surgery, Children`s Hospital, Zhejiang University School of medicine, Hangzhou, ChinaDepartment of General Surgery, Zhejiang University School of Medicine Second Affiliated Hospital, Hangzhou, ChinaDepartment of General Surgery, Zhejiang University School of Medicine Second Affiliated Hospital, Hangzhou, ChinaDepartment of General Surgery, Zhejiang University School of Medicine Second Affiliated Hospital, Hangzhou, ChinaDepartment of General Surgery, Zhejiang University School of Medicine Second Affiliated Hospital, Hangzhou, ChinaTongji Hospital of Tongji Medical College of Huazhong University of Science and Technology, Wuhan, Hubei, ChinaObjectives To investigate sex difference in global gastric cancer incidence by year, age and socioeconomical status.Design An international comparative study.Setting We 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 measures Sex-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.Results Despite 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.Conclusions This 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.https://bmjopen.bmj.com/content/10/1/e033323.full
spellingShingle Lixia Lou
Linyan Wang
Yaoyi Zhang
Guofeng Chen
Lele Lin
Xiaoli Jin
Yi Huang
Sex difference in incidence of gastric cancer: an international comparative study based on the Global Burden of Disease Study 2017
BMJ Open
title Sex difference in incidence of gastric cancer: an international comparative study based on the Global Burden of Disease Study 2017
title_full Sex difference in incidence of gastric cancer: an international comparative study based on the Global Burden of Disease Study 2017
title_fullStr Sex difference in incidence of gastric cancer: an international comparative study based on the Global Burden of Disease Study 2017
title_full_unstemmed Sex difference in incidence of gastric cancer: an international comparative study based on the Global Burden of Disease Study 2017
title_short Sex difference in incidence of gastric cancer: an international comparative study based on the Global Burden of Disease Study 2017
title_sort sex difference in incidence of gastric cancer an international comparative study based on the global burden of disease study 2017
url https://bmjopen.bmj.com/content/10/1/e033323.full
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