Review for 10.1186/s12876-022-02275-0 (2022)

Reviewer’s report
Title: 
Burden and Trend of Colorectal Cancer in 54 countries of Africa 2010-
2019: A systematic examination for Global Burden of Disease
Version: 
0 
Date: 
06 Jan 2022
Reviewer's report:
In this study found that increased age --standardised death rate and DALYs of
colorectal cancer indicates low progress in CRC standard care-diagnosis and
treatment, primary prevention of modifiable risk factors and implementation of
secondary prevention modality. This grave effect would be due to poor cancer
infrastructure and policy, low workforce capacity, cancer center to diagnosis and
treatment, low finical security and low of universal health coverage in Africa.
This study has good clinical research value and provides a basis for the
prevention and treatment of colorectal cancer in Africa. However, the medical
conditions in Africa are backward. The author's data comes from the website,
and can these data reflect the true situation of CRC morbidity and mortality?
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Is the study design appropriate to answer the research question (including the use
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