PapersFlow Research Brief
Global Cancer Incidence and Screening
Research Guide
What is Global Cancer Incidence and Screening?
Global Cancer Incidence and Screening is the epidemiological study of worldwide patterns in new cancer cases, mortality rates, survival outcomes, and the role of screening and preventive services across populations and regions.
The field encompasses 79,804 published works on cancer incidence, mortality, global surveillance, breast cancer screening, health disparities, and preventive interventions. GLOBOCAN estimates from the International Agency for Research on Cancer provide key data, such as 19.3 million new cancer cases worldwide in 2020 excluding nonmelanoma skin cancer, as reported in 'Global Cancer Statistics 2020: GLOBOCAN Estimates of Incidence and Mortality Worldwide for 36 Cancers in 185 Countries' (Sung et al., 2021). Earlier estimates show consistent growth, with 12.7 million cases in 2008 per 'Global cancer statistics' (Jemal et al., 2011).
Topic Hierarchy
Research Sub-Topics
GLOBOCAN Cancer Incidence Estimates
This sub-topic refines GLOBOCAN methodology for modeling global cancer incidence and mortality by country and cancer type. Researchers validate estimates against registries and project future burdens.
Breast Cancer Screening Effectiveness
This sub-topic evaluates mammography, ultrasound, and MRI screening programs' impact on mortality and overdiagnosis. Researchers conduct meta-analyses of RCTs and observational studies.
Cancer Health Disparities Epidemiology
This sub-topic analyzes socioeconomic, racial, and geographic inequities in cancer incidence, stage, and survival. Researchers use population data to quantify disparities and social determinants.
Cancer Risk Factors Global Burden
This sub-topic quantifies tobacco, obesity, alcohol, and infection contributions to cancer burden using PAFs. Researchers model population-attributable risks across regions.
Cancer Survival Trends Population Studies
This sub-topic tracks net survival improvements using cancer registry data like CONCORD and NORDCAN. Researchers attribute gains to diagnostics, treatments, and access.
Why It Matters
Global Cancer Incidence and Screening data guide public health resource allocation and policy, highlighting disparities between high- and low-income countries. Sung et al. (2021) in 'Global Cancer Statistics 2020: GLOBOCAN Estimates of Incidence and Mortality Worldwide for 36 Cancers in 185 Countries' estimated 19.3 million new cases and 10 million deaths in 2020 across 185 countries, enabling targeted interventions like breast cancer screening programs. Bray et al. (2018) in 'Global cancer statistics 2018: GLOBOCAN estimates of incidence and mortality worldwide for 36 cancers in 185 countries' identified geographic variability in 20 world regions, informing equitable access to preventive services and reducing mortality from preventable cancers.
Reading Guide
Where to Start
'Global Cancer Statistics 2020: GLOBOCAN Estimates of Incidence and Mortality Worldwide for 36 Cancers in 185 Countries' by Sung et al. (2021), as it offers the most cited recent global overview with 19.3 million case estimates, introducing core GLOBOCAN methods and patterns accessibly.
Key Papers Explained
Sung et al. (2021) 'Global Cancer Statistics 2020: GLOBOCAN Estimates of Incidence and Mortality Worldwide for 36 Cancers in 185 Countries' updates Bray et al. (2018) 'Global cancer statistics 2018: GLOBOCAN estimates of incidence and mortality worldwide for 36 cancers in 185 countries', both building on Ferlay et al. (2014) 'Cancer incidence and mortality worldwide: Sources, methods and major patterns in GLOBOCAN 2012' methods for compiling registry data. Jemal et al. (2011) 'Global cancer statistics' provides historical context from GLOBOCAN 2008, while Bray et al. (2024) 'Global cancer statistics 2022: GLOBOCAN estimates of incidence and mortality worldwide for 36 cancers in 185 countries' extends to 20 million cases, showing temporal progression.
Paper Timeline
Most-cited paper highlighted in red. Papers ordered chronologically.
Advanced Directions
Recent GLOBOCAN updates like Bray et al. (2024) emphasize 2022 estimates nearing 20 million cases by world region, signaling a need for refined modeling of screening effects amid population aging.
Papers at a Glance
| # | Paper | Year | Venue | Citations | Open Access |
|---|---|---|---|---|---|
| 1 | Global Cancer Statistics 2020: GLOBOCAN Estimates of Incidence... | 2021 | CA A Cancer Journal fo... | 109.0K | ✓ |
| 2 | Global cancer statistics 2018: GLOBOCAN estimates of incidence... | 2018 | CA A Cancer Journal fo... | 86.5K | ✓ |
| 3 | Global cancer statistics | 2011 | CA A Cancer Journal fo... | 54.9K | ✓ |
| 4 | Cancer incidence and mortality worldwide: Sources, methods and... | 2014 | International Journal ... | 28.7K | ✓ |
| 5 | Global cancer statistics, 2012 | 2015 | CA A Cancer Journal fo... | 27.2K | ✓ |
| 6 | Estimates of worldwide burden of cancer in 2008: GLOBOCAN 2008 | 2010 | International Journal ... | 21.3K | ✕ |
| 7 | Cancer statistics, 2020 | 2020 | CA A Cancer Journal fo... | 21.0K | ✓ |
| 8 | Cancer statistics, 2019 | 2019 | CA A Cancer Journal fo... | 20.7K | ✓ |
| 9 | Global cancer statistics 2022: GLOBOCAN estimates of incidence... | 2024 | CA A Cancer Journal fo... | 19.0K | ✓ |
| 10 | Global Cancer Statistics, 2002 | 2005 | CA A Cancer Journal fo... | 18.4K | ✓ |
Frequently Asked Questions
What are the main sources for global cancer incidence estimates?
GLOBOCAN estimates from the International Agency for Research on Cancer compile national incidence and mortality data for 27-36 cancers across 182-185 countries. Ferlay et al. (2014) in 'Cancer incidence and mortality worldwide: Sources, methods and major patterns in GLOBOCAN 2012' detail methods using cancer registries and statistical models. These provide standardized patterns for all cancers combined.
How many new cancer cases were estimated globally in 2020?
Sung et al. (2021) in 'Global Cancer Statistics 2020: GLOBOCAN Estimates of Incidence and Mortality Worldwide for 36 Cancers in 185 Countries' reported 19.3 million new cases worldwide, excluding nonmelanoma skin cancer. This covers 36 cancers in 185 countries. Mortality reached 10 million deaths in the same year.
What factors drive increases in global cancer burden?
Population aging, growth, and adoption of risk factors like smoking contribute to rising incidence. Jemal et al. (2011) in 'Global cancer statistics' noted 12.7 million cases in 2008 due to these trends, especially in developing countries. Torre et al. (2015) in 'Global cancer statistics, 2012' added overweight and physical inactivity as key drivers.
What does GLOBOCAN 2022 reveal about recent cancer statistics?
Bray et al. (2024) in 'Global cancer statistics 2022: GLOBOCAN estimates of incidence and mortality worldwide for 36 cancers in 185 countries' estimated close to 20 million new cases in 2022, including nonmelanoma skin cancers. Data cover world regions from International Agency for Research on Cancer updates. This reflects ongoing global surveillance.
How has the focus on breast cancer screening evolved in this field?
Papers emphasize breast cancer screening within preventive services and health disparities. The cluster description highlights breast cancer screening alongside incidence and mortality studies. GLOBOCAN series like Sung et al. (2021) include screening impacts in incidence estimates for specific cancers.
Open Research Questions
- ? How can disparities in cancer incidence and screening uptake between world regions be reduced using updated GLOBOCAN methods?
- ? What methodological improvements are needed in GLOBOCAN to better account for nonmelanoma skin cancers in global burden estimates?
- ? To what extent do preventive screening services impact mortality trends projected beyond 2022 in low-resource settings?
- ? How do evolving risk factors like obesity alter incidence patterns across economically transitioning countries?
Recent Trends
GLOBOCAN estimates rose from 19.3 million new cases in 2020 (Sung et al., 2021) to nearly 20 million in 2022 including nonmelanoma skin cancers (Bray et al., 2024), reflecting sustained growth in the 79,804 works cluster.
Earlier benchmarks include 12.7 million cases in 2008 (Jemal et al., 2011), underscoring increasing burden tracked by International Agency for Research on Cancer.
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