Participants will receive financial navigation service, including

• Needs Assessment: provide a brief introduction of cancer-related FT and assess patients' information needs using a self-made cost-related health literacy questionnaire;
• Cost-Related Health Education: mainly include topics regarding communication of cost, treatment-related cost, health insurance policies, and family support;
• Resource and Service Referral: promote timely referral to financial assistance programs and clinical professionals when identify unaddressed problems;
• Personalized Counseling Module: provide one-on-one counseling for symptom management, cost-related issues, and coping strategies.

Participants will receive usual care during hospitalization and regular follow-up after discharge. Participants have the freedom to utilize any financial resources, but financial navigators do not offer comprehensive information support. When participants actively inquire about cancer treatment-related costs or financial planning strategies, financial navigators will answer their questions.

During hospitalization, participants will receive needs assessment, and one-on-one cost-related health education with a material booklet. Resource and service referral will be delivered face-to-face or by phone when the navigator identifies unaddressed problems. Within three months after discharge, participants will receive monthly follow-up phone calls and personalized counseling via WeChat.

Financial toxicity will be measured with the Comprehensive Score for Financial Toxicity-Functional Assessment of Chronic Illness Therapy Version 2 (COST-FACIT-V2); lower scores (range, 0-44) indicating greater financial toxicity.

Material domain of financial toxicity will be measured with 2 items adapted from the Medical Expenditure Panel Survey (MEPS).

Behavioral domain of financial toxicity will be measured by employment changes and cost-related nonadherence with 6 items adapted from MEPS and previous literature.

The cost-related health literacy will be measured with homemade 10-item questionnaire, with higher scores indicating higher cost-related health literacy.