Incidence and risk factors for colorectal cancer in Africa: a systematic review and meta-analysis.

Introduction: Colorectal cancer (CRC) is the second leading cause of cancer-related death worldwide. There is a significant burden of mortality from colorectal cancer in Africa. Due to the heterogeneity of dietary and lifestyle practices throughout Africa, our work sought to define risk factors for the development of CRC in the African continent.

Appropriateness and diagnostic yield of open access gastroscopy in two tertiary centers in South-western Nigeria.

Background: There is need for the appropriate use of gastroscopy.

Objective: To determine the appropriateness of upper gastrointestinal endoscopy, and its association with significant endoscopy findings in our environment.

Methods: This was a prospective study of subjects who underwent gastroscopy at two centers in south-western Nigeria between August 2020 and August 2021.

Prevalence and risk factors of Hepatitis D virus antibody among asymptomatic carriers of Hepatitis B virus: a community survey.

Background: Hepatitis D virus (HDV) can cause a chronic infection in the presence of hepatitis B surface antigen and contribute to the burden of chronic liver disease especially in regions where chronic hepatitis B virus (HBV) infection is endemic.

Aim: To determine the prevalence and risk factors of HDV among asymptomatic carriers of HBsAg in Cross River State, Nigeria.

Methods: This was a cross-sectional study conducted among apparently healthy adults resident in Cross River State, Nigeria.