Table 3 Relationship of socio-demographic variables and social-psychological factors with the mothers’ HPV vaccination intention

HPV vaccination uptake

.48**

0.48 (0.10)

.11**

0.57 (0.19)

.13*

Has not received three HPV-injections (reference)

54%

Has received three HPV-injections

46%

Sample

.00

−0.01 (0.07)

0.00

0.15 (0.14)

.04

Praeventis (reference)

47%

Online panel

53%

Socio-demographic variables

Age

43.51 (4.54)

.00

−0.01 (0.01)

-.02

0.00 (0.01)

.01

Highest completed level of education mother

.00

Low (reference)

25%

Intermediate

45%

0.08 (0.08)

.02

−0.02 (0.17)

-.00

High

30%

0.13 (0.09)

.03

0.27 (0.18)

.06

Country of birth mother

.00

The Netherlands (reference)

88%

Surinam/Antilles

4%

−0.22 (0.18)

-.02

0.42 (0.32)

.04

Turkey/Morocco

4%

−0.51 (0.18)

-.05*

0.18 (0.32)

.02

Other

3%

−0.30 (0.18)

-.03

0.10 (0.41)

.01

Protestant religion

.02**

No (reference)

77%

Yes

23%

−0.08 (0.08)

-.02

−0.05 (0.15)

-.01

Social psychological variables

Knowledge about the HPV vaccination

4.82 (2.42)

.00

Risk perception (having received no HPV vaccination)

−0.61 (1.21)

.20**

Risk perception (having received the HPV vaccination)

−1.22 (1.09)

.01

Attitude towards the HPV vaccination

2.78 (6.93)

.76**

0.12 (0.01)

.39**

0.13 (0.02)

.42**

Negative outcome expectations of the HPV vaccination

7.24 (4.56)

.14**

Positive outcome expectations of the HPV vaccination

−3.44 (3.86)

.10**

Anticipated regret about rejecting the HPV vaccination

3.27 (1.44)

.46**

0.20 (0.03)

.13**

Anticipated regret about receiving the vaccination

3.38 (1.39)

.06**

−0.08 (0.03)

-.05*

Beliefs about the HPV vaccination

1.42 (9.92)

.60**

0.03 (0.01)

.14**

0.03 (0.01)

.12*

Relative effectiveness of the HPV vaccination

−0.61 (1.20)

.54**

Ambivalence towards the HPV vaccination decision

0.36 (5.30)

.01*

Confidence in authorities involved in the HPV vaccination

1.60 (3.49)

.42**

Subjective norms towards the HPV vaccination

16.81 (23.57)

.67**

0.02 (0.00)

.19**

0.02 (0.01)

.20**

Descriptive norms towards the HPV vaccination

4.53 (1.34)

.15**

Self-efficacy expectations towards the HPV vaccination

11.87 (4.66)

.01

HPV vaccination information processing

3.79 (2.40)

.06**

Habit strength towards the HPV vaccination

−0.81 (3.64)

.41**

0.07 (0.02)

.11**

0.12 (0.03)

.19**

Decisional conflict about the HPV vaccination – value clarity

3.03 (4.29)

.00

Decisional conflict about the HPV vaccination – certainty

2.00 (4.69)

.02**

−0.05 (.01)

-.10**

−0.07 (0.02)

-.15**

Opinion about alternative medicine

−0.43 (2.37)

.02*

Past experience of the mother with cervical cancer

.00

No (reference)

98%

Yes

2%

Past experience of the mother with other cancer forms

.00

No (reference)

97%

Yes

3%

Past experience of the mother with abnormal pap smear

.00

No (reference)

87%

Yes

13%

Past experience of someone from the close environment with cervical cancer

.00

No (reference)

67%

Yes

33%

Past experience of someone from the close environment with other cancer forms

.00

No (reference)

10%

Yes

90%

Past experience of someone from the close environment with abnormal pap smear

0.00

No (reference)

50%

Yes

50%

Model fit for multivariate models

R² of HPV vaccination uptake

.47

.48

R² change of HPV vaccination uptake

.47

.48

F change of HPV vaccination uptake

653.97**

198.23**

R² of HPV vaccination uptake + sample

.47

.48

R² change of HPV vaccination uptake + sample

.00

.00

F change of HPV vaccination uptake + sample

0.04

0.36

R² of HPV vaccination uptake + sample + socio-demographic variables

.49

.50

R² change of HPV vaccination uptake + sample + socio-demographic variables

.01

.02

F change of HPV vaccination uptake + sample + socio-demographic variables

2.82*

1.37

R² of HPV vaccination uptake + sample + socio-demographic + social-psychological variables

.84

.81

R² change of HPV vaccination uptake + sample + socio-demographic + social-psychological variables

.35

.31

F change of HPV vaccination uptake + sample + socio-demographic + social-psychological variables

218.92**

66.04**