You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is H.pylori infection is associated with increased risk of and explain in detail?
Helicobacter seems to be principally associated with carcinoma of the body and distal stomach rather than proximal. The aetiology of proximal cancer remains an enigma. It is not associated with h.pylori but is associated with obesity and socioeconomic status. Bailey and Love 26 th ed: pg 1046