Epidemiology and Prognostic Analysis of Chinese Cancer Patients With Cancer-related Fatigue

Inclusion Criteria: 1. Male or female, aged 18 years or older. 2. Able to understand the purpose of this survey study, willing to participate, and able to sign an informed consent form. 3. Malignant tumor confirmed histologically or cytologically. Exclusion Criteria: 1. Pregnant or breastfeeding women. 2. Patients with acute or chronic infections, or those with other serious medical conditions that, in the investigator's judgment, make them unsuitable for this study. 3. Patients with two or more concurrent malignant tumors (excluding the following: cured basal cell carcinoma of the skin, carcinoma in situ of the cervix, and papillary thyroid carcinoma). 4. Patients with psychiatric illness or mental disorders, poor compliance, or who are unable to cooperate and report treatment responses. 5. Patients with severe organic disease or major organ failure, such as decompensated heart, lung, liver, or kidney failure. 6. Patients with other conditions that, in the investigator's opinion, make them unsuitable for participation in this study.