Page 58 - Preventing pertussis in early infancy - Visser

Chapter 4
Quantitative study parents
parents had their children vaccinated through the NIP (87.2%) and 94.1% were vaccinated themselves in their childhood (compared to a total vaccination coverage in the Netherlands of 92-95% (van Lier et al. 2015)).
Table 1. Population characteristics (N=282)
Personal data
%
n/N
187/282 (5.1)
Female gender 66.3 Mean age, years (SD), n=277 33.8 High educational level~ + 51.8 Middle/high household income 45.6 Philosophical background* 6.5 Perceived good personal health 98.2 Working in health care 24.7 Mean total persons in household, n (SD), n=277 3.6 (0.8)
Vaccination data
Vaccination of own children according to NIP** 87.2# Vaccinated according to NIP themselves** 94.1
Pertussis experience
Experience with adults infected with pertussis 13.3 Experience with babies infected with pertussis 3.7 Experienced pertussis themselves 4.4
145/280 103/226 18/277 275/280 69/279
191/219 239/254
34/256 10/268 11/250
Positive intention 78
towards pertussis cocooning vaccination acceptance
Note: SD, standard deviation
~ Higher education or university (National comparison: 45% of the Dutch population between 25 -35 years of age) + > 3050 monthly household income. (National comparison: 47% of all Dutch households)
* Philosophical backgrounds include religion, homeopathy, natural cure and anthroposophy ** NIP = National Immunisation Programme (National comparison: 92%-95% in 2014)
# Calculated only for parents who had children eligible for vaccination (> 6 weeks of age)
Intention
Among the participating parents, 78.0% reported to have a positive intention to accept a pertussis vaccination (Table 1). The mean score on the intention scale (range 1-7) was 5.7 (SD 1.5).
Determinants of intention
The majority of parents indicated to have a positive attitude towards pertussis cocooning vaccination (73.0%), they expected that a significant number of others would also evaluate the vaccination positively (83.0%), and that they would be able to get vaccinated if they wanted to (87.0%). Parents also anticipated negative affects for not vaccinating if their infant would be infected with pertussis (72.0%), and 10.4% of the parents experienced uncertainty in the decision to accept or decline a pertussis cocooning vaccination.
Univariate logistic regression showed that only one personal determinant was significantly associated with a positive intention: the odds of mothers having a positive intention was significantly greater than the odds of fathers having a positive intention (Table 2). All measured psychosocial determinants, except for perceived control and autonomy, were significantly associated with intention. Multivariate analysis showed unique positive
219/281
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