Table 1 Participant characteristics at baseline (N = 171)

Age(years)

29.21 ± 6.18

29.71 ± 6.72

29.12 ± 6.1

0.641

  < 20

1 (0.6)

0(0)

1(0.7)

  20–30

105 (61.4)

16(57.1)

89(62.2)

  30–40

51(29.8)

9(32.1)

42(29.4)

  > 40

14 (8.2)

3(10.7)

11(7.7)

Relationship status

0.834

  Single or single but dating

99(58.2)

17(60.7)

82(57.8)

  In a committed

relationship

71(41.8)

11(39.3)

60(42.2)

Education

0.092

  College/High school

130(76)

18(64.3)

112(78.3)

  Graduate school

41(24.0)

10(35.7)

31(21.7)

Occupation

0.478

  Employed

112(65.5)

19(67.9)

93(65.0)

  Student/Unemployed

59(34.5)

9(32.1)

50(35)

Average income over the past year

0.059

  ≤ NT$19,999

56(32.8)

9(32.1)

47(32.9)

  NT$20,000–39,999

71(41.5)

5(17.9)

66(46.2)

  ≥ NT$40,000

44(25.7)

14(50.0)

30(21.0)

HPV knowledge

17.48 ± 5.85

(62.4)

19.43 ± 5.41

(69.4)

17.1 ± 5.87

(61.1)

0.054

Capacity to obtain HPV-related information

3.14 ± 0.91

2.89 ± 0.99

3.18 ± 0.89

0.123

Perceived severity of HPV

4.15 ± 0.83

4.14 ± 0.78

4.16 ± 0.84

0.938

Subjective norm

4.07 ± 0.75

4.15 ± 0.52

4.05 ± 0.78

0.529

Perceived benefits of HPV vaccine

3.90 ± 0.69

3.99 ± 0.61

3.88 ± 0.71

0.466

Perceived barriers of HPV vaccine

2.53 ± 0.55

2.42 ± 0.60

2.55 ± 0.54

0.287

HPV positive

59(34.5)

16(57.1)

43(30.1)

0.006**

Intention to receive the HPV vaccine with three price range

  NT8000-12,000

77(45.0)

21(75.0)

56(39.2)

 < 0.001***

  NT4000-8000

103(60.2)

23(82.1)

80(55.9)

0.007**

  free

159(93.0)

26(93.0)

133(93.0)

0.667

Intention to receive the HPV vaccine

0.003**

  No matter what the price is

77(45.0)

21(75.0)

56(39.2)

  If the price is below NT$8000

26(15.2)

2(7.1)

24(16.8)

  If the price free or

no intention

68(39.7)

5(17.8)

63(44.1)