ArticleJournal of global health2012
Estimating the incidence of colorectal cancer in Sub-Saharan Africa: A systematic analysis.
Article in Journal of global health, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 59 papers, 1 of them a synthesis that pooled 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.
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.
Who cites it
59 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Age-standardised incidence rate and epidemiology of colorectal cancer in Africa: a systematic review and meta-analysis.BMJ open · 2022Pooled it
- COLORECTAL CANCER: A SURVEY OF THE KNOWLEDGE, ATTITUDE AND RISK ASSESSMENT OF CLINIC ATTENDEES IN NIGERIA.Annals of Ibadan postgraduate medicine · 2026Article
- Evaluating clinicopathological pattern and management of colorectal cancer for adult patients presenting at Queen Elizabeth Central Hospital: a 10-year retrospective review.BMC gastroenterology · 2026Article
- Article
- Article
- The descriptive epidemiology of age at colorectal cancer diagnosis in Africa: a systematic review and meta-analysis.EClinicalMedicine · 2025Article
- Trend analysis and epidemiological forecasting of colorectal Cancer mortality among reproductive-age women in sub-Saharan Africa.Preventive medicine reports · 2025Article
- Rising Incidence and Mortality of Colorectal Cancer in Young African Adults: Need for a Better Care Plan.Cureus · 2025Review
- Assessing the Colorectal Cancer Landscape: A Comprehensive Exploration of Future Trends in 216 Countries and Territories from 2021 to 2040.Journal of epidemiology and global health · 2025Article
- Trends in gastrointestinal cancer burden in Zimbabwe: 10-year retrospective study 2009-2018.Ecancermedicalscience · 2025Article
- Dietary risk factors for colorectal cancer in Uganda: a case-control study.BMC nutrition · 2024Article
- Article
- African colorectal cancer burden in 2022 and projections to 2050.Ecancermedicalscience · 2024Article
- Colorectal cancer disease profile and treatment patterns at an urban tertiary hospital in Rwanda.Ecancermedicalscience · 2024Article
- Early-Onset Colon Cancer: A Narrative Review of Its Pathogenesis, Clinical Presentation, Treatment, and Prognosis.Cureus · 2023Review
- Clinical presentation, treatment patterns, and outcomes of colorectal cancer patients at Tikur Anbessa Specialized Hospital in Addis Ababa, Ethiopia: A prospective cohort study.Cancer reports (Hoboken, N.J.) · 2023Article
- Alternative Splicing Events and Their Clinical Significance in Colorectal Cancer: Targeted Therapeutic Opportunities.Cancers · 2023Review
- Cost-effectiveness of adjuvant chemotherapy for high-risk stage II and stage III colon cancer in South Africa.Cancer medicine · 2023Article
- Observational
- Management pattern and medication-related harms and its predictors in colorectal cancer patients: an institutional-based retrospective study.Frontiers in oncology · 2023Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundNearly two-thirds of annual mortality worldwide is attributable to non-communicable diseases (NCDs), with 70% estimated to occur in low- and middle-income countries (LMIC). Colorectal cancer (CRC) accounts for over 600 000 deaths annually, but data concerning cancer rates in LMIC is very poor. This study analyses the data available to produce an estimate of the incidence of colorectal cancer in Sub-Saharan Africa (SSA).
methodsDATA FOR THIS ANALYSIS CAME FROM TWO MAIN SOURCES: a systematic search of Medline, EMBASE and Global Health which found 15 published data sets, and an additional 42 unpublished data sets which were sourced from the IARC and individual cancer registries. Data for case rates by age and sex, as well as population denominators were extracted and analysed to produce an estimate of incidence.
resultsThe crude incidence of CRC in SSA for both sexes was found to be 4.04 per 100 000 population (4.38 for men and 3.69 for women). Incidence increased with age with the highest rates in Southern Africa, particularly in South Africa. The rates of CRC in SSA were much lower than those reported for high-income countries.
conclusionFew health services in SSA are equipped to provide timely diagnosis and treatment of cancer in SSA. In addition, data collection systems are weak, meaning that the available statistics may underestimate the burden of disease. In order to improve health care services it is vital that accurate measurements of disease burden are available to policy makers.
Identifiers
What OpenQuestion holds
Registered trials
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.