Variables | Univariate simple regression analysis among 75% of the mothers (n = 732) | Multivariate backward regression analysis among 75% of the mothers (n = 727) | Multivariate backward regression analysis among 25% of the mothers (n = 219) | |||
---|---|---|---|---|---|---|
Mean (standard deviation) or percentage | Association1 | Beta (standard error) | Standardized Beta | Beta (standard error) | Standardized Beta | |
HPV vaccination uptake | Â | .48** | 0.48 (0.10) | .11** | 0.57 (0.19) | .13* |
Has not received three HPV-injections (reference) | 54% | Â | Â | Â | Â | Â |
Has received three HPV-injections | 46% | Â | Â | Â | Â | Â |
Sample |  | .00 | −0.01 (0.07) | 0.00 | 0.15 (0.14) | .04 |
Praeventis (reference) | 47% | Â | Â | Â | Â | Â |
Online panel | 53% | Â | Â | Â | Â | Â |
Socio-demographic variables | Â | Â | Â | Â | Â | Â |
Age | 43.51 (4.54) | .00 | −0.01 (0.01) | -.02 | 0.00 (0.01) | .01 |
Highest completed level of education mother | Â | .00 | Â | Â | Â | Â |
Low (reference) | 25% | Â | Â | Â | Â | Â |
Intermediate | 45% |  | 0.08 (0.08) | .02 | −0.02 (0.17) | -.00 |
High | 30% | Â | 0.13 (0.09) | .03 | 0.27 (0.18) | .06 |
Country of birth mother | Â | .00 | Â | Â | Â | Â |
The Netherlands (reference) | 88% | Â | Â | Â | Â | Â |
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 | Â | .02** | Â | Â | Â | Â |
No (reference) | 77% | Â | Â | Â | Â | Â |
Yes | 23% |  | −0.08 (0.08) | -.02 | −0.05 (0.15) | -.01 |
Social psychological variables | Â | Â | Â | Â | Â | Â |
Knowledge about the HPV vaccination | 4.82 (2.42) | .00 | Â | Â | Â | Â |
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** | Â | Â | Â | Â |
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** | Â | Â |
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* | Â | Â | Â | Â |
Confidence in authorities involved in the HPV vaccination | 1.60 (3.49) | .42** | Â | Â | Â | Â |
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** | Â | Â | Â | Â |
Self-efficacy expectations towards the HPV vaccination | 11.87 (4.66) | .01 | Â | Â | Â | Â |
HPV vaccination information processing | 3.79 (2.40) | .06** | Â | Â | Â | Â |
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 | Â | .00 | Â | Â | Â | Â |
No (reference) | 98% | Â | Â | Â | Â | Â |
Yes | 2% | Â | Â | Â | Â | Â |
Past experience of the mother with other cancer forms | Â | .00 | Â | Â | Â | Â |
No (reference) | 97% | Â | Â | Â | Â | Â |
Yes | 3% | Â | Â | Â | Â | Â |
Past experience of the mother with abnormal pap smear | Â | .00 | Â | Â | Â | Â |
No (reference) | 87% | Â | Â | Â | Â | Â |
Yes | 13% | Â | Â | Â | Â | Â |
Past experience of someone from the close environment with cervical cancer | Â | .00 | Â | Â | Â | Â |
No (reference) | 67% | Â | Â | Â | Â | Â |
Yes | 33% | Â | Â | Â | Â | Â |
Past experience of someone from the close environment with other cancer forms | Â | .00 | Â | Â | Â | Â |
No (reference) | 10% | Â | Â | Â | Â | Â |
Yes | 90% | Â | Â | Â | Â | Â |
Past experience of someone from the close environment with abnormal pap smear | Â | 0.00 | Â | Â | Â | Â |
No (reference) | 50% | Â | Â | Â | Â | Â |
Yes | 50% | Â | Â | Â | Â | Â |
Model fit for multivariate models | Â | Â | Â | Â | Â | Â |
R2 of HPV vaccination uptake | Â | Â | Â | .47 | Â | .48 |
R2 change of HPV vaccination uptake | Â | Â | Â | .47 | Â | .48 |
F change of HPV vaccination uptake | Â | Â | Â | 653.97** | Â | 198.23** |
R2 of HPV vaccination uptake + sample | Â | Â | Â | .47 | Â | .48 |
R2 change of HPV vaccination uptake + sample | Â | Â | Â | .00 | Â | .00 |
F change of HPV vaccination uptake + sample | Â | Â | Â | 0.04 | Â | 0.36 |
R2 of HPV vaccination uptake + sample + socio-demographic variables | Â | Â | Â | .49 | Â | .50 |
R2 change of HPV vaccination uptake + sample + socio-demographic variables | Â | Â | Â | .01 | Â | .02 |
F change of HPV vaccination uptake + sample + socio-demographic variables | Â | Â | Â | 2.82* | Â | 1.37 |
R2 of HPV vaccination uptake + sample + socio-demographic + social-psychological variables | Â | Â | Â | .84 | Â | .81 |
R2 change of HPV vaccination uptake + sample + socio-demographic + social-psychological variables | Â | Â | Â | .35 | Â | .31 |
F change of HPV vaccination uptake + sample + socio-demographic + social-psychological variables | Â | Â | Â | 218.92** | Â | 66.04** |