Reason for willing to participant

Willing (n = 52)

Dependents on the situation (n = 166)

Recommendation from trusted physicians*

48 (92.30)

139 (83.73)

Free treatment and test*

34 (65.38)

88 (53.01 )

Currently available drugs do not control the disease*

52 (94.54)

104 (62.65)

The most cutting-edge drugs

22 (42.3)

120 (72.29)

Acquire more attention from physicians

39 (75.00)

89 (53.61)

Devote to the IBD medicine

18 (34.61)

33 (19.88)

Worry the attitude will be change if I refused to attend the clinical trial*

10 (19.23)

22 (13.25)