Table 3 Respondent perception of clinical trials (N = 1,515)

Gender

Male

5.40 (2.34)

1.378

.168

4.70 (1.93)

−0.292

.770

7.36 (2.18)

1.677

.094

Female

5.24 (2.28)

4.72 (1.86)

7.17 (2.12)

Age (years)

19 ~ 29

5.00 (2.23)

20.752

.004

4.57 (1.90)

5.984

.156

6.77 (2.16)^a

26.135

<.001

30s

5.11 (2.30)

4.64 (1.85)

7.28 (2.30)^b

a < b

40s

5.53 (2.22)

4.90 (1.81)

7.49 (1.99)^b

50s

5.54 (2.55)

4.74 (1.95)

7.46 (2.20)^b

≥60

5.49 (2.24)

4.61 (2.10)

7.26 (1.99)

Education

≤High School

5.37 (2.30)

6.427

.272

4.73 (1.87)

1.205

.563

7.29 (2.14)

1.113

.624

≥ College

5.23 (2.32)

4.67 (1.95)

7.23 (2.18)

Region

Large city

5.44 (2.24)

13.682

.077

4.82 (1.97)

9.319

.075

7.00 (2.20)^a

53.033

<.001

Small city

5.16 (2.42)

4.58 (1.86)

7.46 (2.16)^b

a < b

Rural area

5.37 (2.16)

4.73 (1.70)

7.68 (1.75)^b

Household income

<2,000

5.24 (2.41)

8.345

.181

4.69 (1.88)

0.957

.901

7.02 (2.30)

16.105

.007

2,000-2,999

5.43 (2.20)

4.76 (1.85)

7.37 (1.91)

3,000-3,999

5.14 (2.24)

4.65 (2.00)

7.13 (2.24)

≥4,000

5.39 (2.41)

4.72 (1.89)

7.44 (2.16)

Living style

Alone

5.39 (2.30)

0.301

.763

4.66 (1.69)

−0.234

.815

7.23 (2.07)

−0.153

.879

With family

5.31 (2.31)

4.71 (1.91)

7.27 (2.16)

Awareness of CT

No

4.66 (2.33)

−6.469

<.001

4.21 (1.86)

−5.910

<.001

6.66 (2.39)

−5.901

<.001

Yes

5.54 (2.26)

4.87 (1.89)

7.47 (2.03)

Experience in CT

No

5.51 (2.26)

−2.938

.003

4.88 (1.87)

0.436

.663

7.47 (2.02)

0.834

.404

Yes

6.88 (2.17)

4.71 (2.44)

7.13 (2.19)