Table 1 Sample description and variable definitions

Gender

Participant's Gender

Male=1, Female=0

Age

Age Group of the Participant

18-44 years old=1, 45-59 years old=2, 60-74 years old=3, 75 years old and above=4

Education

Highest Educational Level of the Participant

Junior High School and below=1, Associate Degree=2, Bachelor's Degree and above=3

Occupation

Occupation Category of the Participant

Civil Servant=1, Corporate Staff=2, Enterprise Worker=3, Self-employed=4, Migrant Worker=5, Retiree=6, Freelancer=7, Public Institution Employee=8, Medical Institution Staff=9, Unemployed=10

Monthly Family Income

Monthly Income Range of the Participant's Family

Below 5,000 yuan (≈ Below $775) = 1, 5,000-8,000 yuan (≈ $775-$1,240) = 2,

8,000-12,000 yuan (≈ $1,240-$1,860) = 3,

12,000-23,000 yuan (≈ $1,860-$3,565) = 4,

Above 23,000 yuan (≈ Above $3,565) = 5

Medical Payment Method

Participant's Method of Medical Payment

Fully Self-Paid = 1, Publicly Funded Medical Care = 2, Commercial Insurance = 3, Occupational Basic Medical Insurance = 4, Urban Residents' Basic Medical Insurance = 5, Rural Residents' Basic Medical Insurance = 6

Religious Belief

Whether the Participant has a Religious Belief

Yes = 1, No = 0

Family Situation

Participant's Family Structure

Unmarried = 1, Married without Children = 2, Widowed/Divorced with Children = 3, Children studying or working away, couple living together = 4, Couple living with children = 5, Elderly-centered, two or more couples and their children living together = 6, Grandparents living with grandchildren = 7, Other family types = 8

Region

Geographic Area where the Participant Resides

Eastern = 1, Central = 2, Western = 3

(Note: For regional divisions, see Appendix 1)

Medical Decision-making Model

Preferred Medical Decision-making Model by the Participant

Doctor-dominant = 1, Family-centric = 2, Patient-drivenl = 3, Doctor-led = 4, Doctor-Patient = 5, Patient-Family = 6, Doctor-Patient-Family = 7