Abstract: Objective: To explore the effects of the E-Coach health management model on nutritional status of patients with lung cancer, so as to provide a reference for standardized and scientific management of nutrition in lung cancer patients. Methods: A total of 78 lung cancer patients admitted to a tertiary hospital in Jilin province from June 2023 to June 2024 were recruited and were randomly assigned to the control group and observational group evenly. Patients in the control group received routine care and patients in the observational group received care based on the E-Coach health management model. The nutritional status, quality of life, physical activity and compliance with the nutrition management of the two groups were collected on the day of enrollment (T0), intervention completion (T1), and 3 months after intervention completion (T2). Results: At T1, the incidence of malnutrition in the intervention group was 56.4%, lower than the 94.8% in the control group, and the difference was statistically significant (χ2=15.656, P<0.001); Significant differences were also observed regarding prealbumin, albumin and hemoglobin levels, as well as quality of life, physical activities, and compliance with the nutrition management between two groups (P<0.05). Participants' nutritional status (except for muscle mass), quality of life, physical activities, and compliance with the nutrition management at T2 were statistically different between two groups (P<0.01). Conclusion: The nutritional management program can effectively improve the nutritional status, quality of life, and physical activity ability of lung cancer patients. The intervention is worthy of promotion in clinical practice.

Key words: E-Coach health management model; lung cancer; nutrition management; nursing