Table 3 Comparisons of the 3 different design posters in the Survey1

【Advance care planning】

 Humor perception

2.27 (0.87)

2.37 (0.88)

3.03 (1.14)

 < 0.001

 Comprehensibility

2.63 (1.04)

2.93 (1.04)

3.09 (0.96)

 < 0.001

 Overall score

-0.31 (1.30)

-0.10 (1.29)

0.10 (1.33)

0.007

 Persuasiveness

2.49 (0.88)

2.67 (0.83)

2.79 (0.79)

0.002

 Resistance

2.80 (0.82)

2.77 (0.74)

2.69 (0.71)

0.326

【Cancer screening】

 Humor perception

2.13 (0.81)

2.51 (0.94)

2.41 (0.94)

 < 0.001

 Comprehensibility

3.64 (0.97)

3.62 (0.94)

3.33 (1.05)

0.002

 Overall score

0.77 (1.32)

0.63 (1.37)

0.36 (1.43)

0.011

 Persuasiveness

3.15 (0.87)

3.03 (0.89)

2.88 (0.92)

0.012

 Resistance

2.38 (0.79)

2.40 (0.80)

2.52 (0.85)

0.168

【Donor registry】

 Humor perception

1.83 (0.81)

2.31 (0.84)

2.68 (1.04)

 < 0.001

 Comprehensibility

3.56 (1.00)

3.07 (1.15)

3.11 (1.10)

 < 0.001

 Overall score

0.62 (1.20)

0.00 (1.22)

-0.12 (1.29)

 < 0.001

 Persuasiveness

2.98 (0.77)

2.69 (0.81)

2.53 (0.83)

 < 0.001

 Resistance

2.36 (0.77)

2.69 (0.78)

2.65 (0.81)

 < 0.001