Fig. 1

Importance of attributes for overall and by class. Overall. The red area means importance of attribute of treatment method is 11.11%. The orange area means importance of attribute of mortality within five years is 40.92%. The grass-green area means importance of attribute of complication rate within one year is 15.32%. The bright-green area means importance of attribute of treatment duration is 19.75%. The blue area means importance of attribute of expense is 12.90%. 11.11% Treatment method. 40.92% Mortality within five years. 15.32% Complication rate within 1 year. 19.75% Treatment duration. 12.90% Expense. Class1. The red area means importance of attribute of treatment method is 23.22%. The orange area means importance of attribute of mortality within five years is 15.68%. The grass-green area means importance of attribute of complication rate within one year is 16.93%. The bright-green area means importance of attribute of treatment duration is 27.28%. The blue area means importance of attribute of expense is 16.88%. 23.22% Treatment method. 15.68% Mortality within five years. 16.93% Complication rate within 1 year. 27.28% Treatment duration. 16.88% Expense. Class 2. The red area means importance of attribute of treatment method is 4.36%. The orange area means importance of attribute of mortality within five years is 60.03%. The grass-green area means importance of attribute of complication rate within one year is 14.57%. The bright-green area means importance of attribute of treatment duration is 13.33%. The blue area means importance of attribute of expense is 7.71%. 4.36% Treatment method. 60.03% Mortality within five years. 14.57% Complication rate within 1 year. 13.33% Treatment duration. 7.71% Expense. Class 3. The red area means importance of attribute of treatment method is 16.12%. The orange area means importance of attribute of mortality within five years is 14.09%. The grass-green area means importance of attribute of complication rate within one year is 24.20%. The bright-green area means importance of attribute of treatment duration is 4.34%. The blue area means importance of attribute of expense is 41.24%. 16.12% Treatment method. 14.09% Mortality within five years. 24.20% Complication rate within 1 year. 4.34% Treatment duration. 41.24% Expense