Christiana A. Demetriou , Constantinos Koshiaris , Olivia A. Cory , Constantina Constantinou , Ourania Kolokotroni , Yiola Marcou , Demetris Papamichael , Haris Charalambous , Dimitrios Vomvas , Anna Demetriou , Vasos Scoutellas , Annalisa Quattrocchi
{"title":"Trends in incidence and survival of the four most common cancers by stage at diagnosis in Cyprus: A population-based study from 2004 to 2017","authors":"Christiana A. Demetriou , Constantinos Koshiaris , Olivia A. Cory , Constantina Constantinou , Ourania Kolokotroni , Yiola Marcou , Demetris Papamichael , Haris Charalambous , Dimitrios Vomvas , Anna Demetriou , Vasos Scoutellas , Annalisa Quattrocchi","doi":"10.1016/j.canep.2024.102704","DOIUrl":null,"url":null,"abstract":"<div><h3>Background</h3><div>Breast, colorectal, lung and prostate cancers are the most frequent malignancies in Cyprus. This study estimated the incidence rate and 5-year net survival (NS) trends for these cancers, by sex, age, and tumor stage at diagnosis.</div></div><div><h3>Methods</h3><div>We analyzed data from the Cyprus Cancer Registry for adults diagnosed between 2004 and 2017, with follow-up until 2019. Tumor stage was classified into localized, regional, distant and unknown categories. We estimated the annual percentage change (APC) in incidence rates using Joinpoint regression. NS was estimated using flexible parametric models, adjusting for sex, age, stage and period of diagnosis. Multiple imputation was used to address unknown cancer stage.</div></div><div><h3>Results</h3><div>During 2004–2017, the incidence significantly increased for breast and lung cancer (APC: 1.1 % and 2.6 %, respectively), mainly among the elderly (70 +). A decreasing trend was identified for prostate cancer only among individuals aged 80 +. No temporal variations were identified for colorectal cancer incidence.</div><div>A positive time trend was identified for localized breast cancer between 2006 and 2017 (APC: 2.8 %). Conversely, a significant increase was noted at more advanced stages for lung (APC<sub>distant</sub>: 4.1 %) and prostate (APC<sub>regional</sub>: 7.6 %) cancers.</div><div>NS improved for all cancers, ranging between 80 % and 90 % for regional and all stages of breast cancer, localized colorectal cancer, and all stages of prostate cancer, surpassing 95 % for localized breast cancer, localized and regional prostate cancer.</div></div><div><h3>Conclusion</h3><div>The study observed increased (breast and lung) or stable (colorectal and prostate) cancer incidence and substantial improvements in 5-years NS trends for all cancer types, despite differences by sex and stage. Efforts should be intensified to reduce incidence by addressing cancer risk factors, and to improve survival by implementing and increasing the uptake of screening programs.</div></div>","PeriodicalId":56322,"journal":{"name":"Cancer Epidemiology","volume":"94 ","pages":"Article 102704"},"PeriodicalIF":2.4000,"publicationDate":"2024-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Cancer Epidemiology","FirstCategoryId":"3","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1877782124001838","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ONCOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Background
Breast, colorectal, lung and prostate cancers are the most frequent malignancies in Cyprus. This study estimated the incidence rate and 5-year net survival (NS) trends for these cancers, by sex, age, and tumor stage at diagnosis.
Methods
We analyzed data from the Cyprus Cancer Registry for adults diagnosed between 2004 and 2017, with follow-up until 2019. Tumor stage was classified into localized, regional, distant and unknown categories. We estimated the annual percentage change (APC) in incidence rates using Joinpoint regression. NS was estimated using flexible parametric models, adjusting for sex, age, stage and period of diagnosis. Multiple imputation was used to address unknown cancer stage.
Results
During 2004–2017, the incidence significantly increased for breast and lung cancer (APC: 1.1 % and 2.6 %, respectively), mainly among the elderly (70 +). A decreasing trend was identified for prostate cancer only among individuals aged 80 +. No temporal variations were identified for colorectal cancer incidence.
A positive time trend was identified for localized breast cancer between 2006 and 2017 (APC: 2.8 %). Conversely, a significant increase was noted at more advanced stages for lung (APCdistant: 4.1 %) and prostate (APCregional: 7.6 %) cancers.
NS improved for all cancers, ranging between 80 % and 90 % for regional and all stages of breast cancer, localized colorectal cancer, and all stages of prostate cancer, surpassing 95 % for localized breast cancer, localized and regional prostate cancer.
Conclusion
The study observed increased (breast and lung) or stable (colorectal and prostate) cancer incidence and substantial improvements in 5-years NS trends for all cancer types, despite differences by sex and stage. Efforts should be intensified to reduce incidence by addressing cancer risk factors, and to improve survival by implementing and increasing the uptake of screening programs.
期刊介绍:
Cancer Epidemiology is dedicated to increasing understanding about cancer causes, prevention and control. The scope of the journal embraces all aspects of cancer epidemiology including:
• Descriptive epidemiology
• Studies of risk factors for disease initiation, development and prognosis
• Screening and early detection
• Prevention and control
• Methodological issues
The journal publishes original research articles (full length and short reports), systematic reviews and meta-analyses, editorials, commentaries and letters to the editor commenting on previously published research.