Temporal Transformation Mechanism and Intervention Strategies of Frail-related Dietary Behaviors in Older Gastric Cancer Survivors

The investigators invite participants to participate in the research project "Research on the Maintenance Mechanism and Intervention Strategies of Dietary Behavior Changes Related to Frailty in Elderly Gastric Cancer Survivors". This project is funded by the School of Nursing of Nanjing Medical University and will be carried out in the Gastroenterology Department of the General Surgery Department of the First Affiliated Hospital of Nanjing Medical University and the Affiliated Cancer Hospital of Nanjing Medical University. Participants have been invited to join this research because participants meet the inclusion criteria for the study. This informed consent form provides participants with some information to help participants decide whether to participate in this clinical study. Participants' participation in this study is voluntary. This research has been reviewed and approved by the Ethics Committee of Nanjing Medical University. If participants agree to join this study, please refer to the following instructions. Please read carefully. If participants have any questions, please raise them to the researcher in charge of this study. Research objective (Why conduct this research?) China is a country with a high incidence of gastric cancer. Its incidence and mortality rates both rank among the top five in the world, seriously endangering the health of its citizens. With the intensification of aging, the proportion of gastric cancer patients over 60 years old among all gastric cancer patients has reached as high as 75.2%, making elderly gastric cancer patients a large group. Nutrition plays a crucial role in the frailty development of elderly survivors of gastric cancer. Research process and methods (What needs to be done if participating in the research?) If participants are willing to participate in this study, participants will be surveyed at the time points of discharge and 1 month, 3 months and 6 months after the operation. During participants' hospitalizati