Table 1.

Questions and corresponding difficulty levels used to test the performance of LLMs

No.	Questions	Difficulty level
1	What is prostate cancer?	Basic
2	What are the symptoms of prostate cancer?	Basic
3	How can I prevent from prostate cancer?	Basic
4	Who is at risk of prostate cancer?	Basic
5	How is prostate cancer diagnosed?	Basic
6	What is a prostate biopsy?	Basic
7	How is prostate cancer treated?	Basic
8	How long can I live if I have prostate cancer?	Basic
9	How often do I need get a PSA test?	Basic
10	What is prostate-specific antigen?	Basic
11	What is screening for prostate cancer?	Basic
12	Should I get screened for prostate cancer?	Basic
13	My father had prostate cancer. Will I have prostate cancer too?	Hard
14	I have a high PSA level. Do I have prostate cancer?	Hard
15	What does a PSA level of 4 mean?	Hard
16	What does a PSA level of 10 mean?	Hard
17	What does a PSA level of 20 mean?	Hard
18	The doctor said my prostate is totally removed by surgery. Why my PSA is still high after surgery?	Hard
19	I have localized prostate cancer. Which is better, the radiation therapy or the surgery?	Hard
20	Should I have robotic surgery or laparoscopic surgery if I have prostate cancer?	Hard
21	What is the best medicine for Castration-resistant prostate cancer?	Hard
22	Which is better for prostate cancer? Apalutamide or Enzalutamide?	Hard