Brief Summary Template for the Study: The goal of this observational study is to examine the relationship between digestive symptom scores, serum pepsinogen indices, and histopathological OLGA and OLGIM systematic staging of the gastric mucosa in patients with chronic atrophic gastritis(CAG), aiming to determine the degree of correlation between clinical manifestations, non-invasive laboratory tests, and the gold standard of diagnostic histopathology.To evaluate the comprehensive therapy, readiness and acceptance of acupuncture, utilization rates of various acupuncture therapies, self-assessed efficacy of acupuncture, and endoscopic histopathological alterations in patients with CAG.According to the aforementioned study, it is anticipated to enhance the optimization of acupuncture clinical research protocols for chronic atrophic gastritis, improve treatment efficacy, and offer more effective and rational therapy alternatives for patients.The main question it aims to answer is: To determine if the outcomes of combined serologic testing of symptoms in patients with CAG can serve as a method for monitoring disease development and if long-term follow-up can be supported？ A group of participants with recorded GI symptom scores and blood pepsinogen levels will respond to online survey questions regarding the severity of their chronic atrophic gastritis progression over the course of 1 year.
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Correlation between gastrointestinal symptom scores combined with serum pepsinogen indexes and histopathologic OLGA and OLGIM systematic staging of gastric mucosa in patients with CAG
Timeframe: Gastroscopy and pathology reports within one year, serology and symptom assessment within one week of participant enrollment