1
|
Quattrocchi A, Demetriou CA, Cory OA, Saad B, Constantinou C, Marcou Y, Demetriou A, Scoutellas V, Kolokotroni O. Breast cancer trends in women in Cyprus: a population-based study between 2004-2017. Eur J Public Health 2022. [DOI: 10.1093/eurpub/ckac131.141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
In Cyprus, breast cancer (BC) is the first in incidence and second in mortality cancer in women. A national screening programme (NSP), targeting women 50-69 years, was introduced in 2007. The aim of this study is to provide a better understanding of cancer trends.
Methods
Data from the national population-based Cyprus Cancer Registry on adult women diagnosed with BC between 2004-2017 with follow-up until 2019 were analysed as follows: Joinpoint regression for age-adjusted (overall and by tumor stage at diagnosis - TSD) and age-specific rates (<50, 50-59, 60-69, 70-79, ≥ 80) incidence and mortality rates; 5-year age-adjusted Net Survival (NS) rates, overall and by TSD. TSD was categorised as localised, regional, and distant.
Results
Age-adjusted incidence rate increased from 135.3 (2004) to 153.2 (2017) per 100,000, with an annual percentage change (APC) of 1.1% (95%CI: 0.4-1.9). The greatest increase was in the age groups ≥70 years. A positive time trend was found for localized cancers between 2006-2017, while for all other stages nonsignificant trends were detected. Age-adjusted mortality rate increased from 37.0 (2004) to 50.0 (2019) per 100,000 (APC: 2.7%; 95%CI: 1.9-9.4). Significant increases in mortality rates were detected in the age groups ≥70 years. By TSD, increased rates were found at localised and regional stages, however smaller increases were detected since 2007. NS rates for the most recent period (2014-2017) was 93% for localized, 81% for regional, and 32% for distant and did not significantly improve compared to the previous years.
Conclusions
Trends in BC incidence continues to increase, especially in the older age groups and for early-stage cancers. As expected, since the introduction of the NSP, the incidence of localised cancers increased whilst the incidence of advanced stage cancer decreased, albeit non-significantly. Survival trends did not change but mortality rates for localised and regional cancers increased at a slower pace.
Key messages
• The introduction of the national screening programme may have played an important role in the increasing BC incidence trends.
• Despite survival rates not improving since the introduction of the national screening programme, mortality rates for early-stage cancers show a less steep increase.
Collapse
Affiliation(s)
- A Quattrocchi
- Primary Care and Population Health, University of Nicosia Medical School , Nicosia, Cyprus
| | - CA Demetriou
- Primary Care and Population Health, University of Nicosia Medical School , Nicosia, Cyprus
| | - OA Cory
- University of Nicosia Medical School , Nicosia, Cyprus
| | - B Saad
- University of Nicosia Medical School , Nicosia, Cyprus
| | - C Constantinou
- Basic and Clinical Sciences, University of Nicosia Medical School , Nicosia, Cyprus
| | - Y Marcou
- Bank of Cyprus Oncology Center , Nicosia, Cyprus
| | - A Demetriou
- Health Monitoring Unit, Ministry of Health , Nicosia, Cyprus
| | - V Scoutellas
- Health Monitoring Unit, Ministry of Health , Nicosia, Cyprus
| | - O Kolokotroni
- School of Health Sciences, Cyprus University of Technology , Limassol, Cyprus
| |
Collapse
|