Author(s)

Nada Lahmidani^1*, Mounia El Yousf¹, Nourdine Aqodad¹, Dafr Allah Benajah¹, Mohammed El Abkari¹, Adil Ibrahimi¹, Adil Najdi², Zineb Benbrahim³, Naoufal Mellas³

¹Department of Gastroenterology, University Hospital Hassan II, School of Medicine and Pharmacy of Fez, Sidi Mohammed Ben Abdallah University, Fez, Morocco.
²Department of Epidemiology and Biostatistics, School of Medicine and Pharmacy of Tangier, Tangier, Morocco.
³Department of Medical Oncology, University Hospital Hassan II, School of Medicine and Pharmacy of Fez, Sidi Mohammed Ben Abdallah University, Fez, Morocco.

Gastric adenocarcinoma is the most common gastric tumor. It is the fifth most common cancer worldwide after lung cancer, breast, colo rectal and prostate cancer. Long considered enigmatic, its epidemiology has changed over time. In fact, the incidence of distal gastric cancer has declined while that of the cardia was stable or increased. This cancer is multifactorial but reducing the incidence of distal cancer is particularly attributed to advances in the treatment of H. pylori infection. In this review, we analyzed the available data concerning the changing epidemiology of gastric cancer and the main risk factors. The incidence of distal cancer is definitely declining due to the control of Helicobacter pylori infection. Proximal gastric cancer and cardia cancer is particularly due to smoking, overweight.

Adenocarcinoma, Gastric, Incidence, Risk Factors, Helicobacter pylori

Lahmidani, N. , El Yousf, M. , Aqodad, N. , Benajah, D. , El Abkari, M. , Ibrahimi, A. , Najdi, A. , Benbrahim, Z. and Mellas, N. (2018) Update on Gastric Cancer Epidemiology and Risk Factors. Journal of Cancer Therapy, 9, 242-254. doi: 10.4236/jct.2018.93021.