Table 4.

The content of the survey questionnaire.

Content domain	Item	Response format and category
		Hesitant	Not sure	Non-hesitant
Behavior	1. Have you ever delayed your child’s vaccination for reasons other than illness or allergy?	Yes	Not sure	No
	2. How sure that following the recommended schedule is good for your child?	0–5 points	6–7 points	8–10 points
	3. It is my role as a parent to question vaccinations.	Strongly Agree/Agree	Not sure	Disagree/Strongly Disagree
	4. If you had another infant today, would you intend to get all the recommended vaccinations?	No	Not sure	Yes
	5. Overall, how hesitant about childhood vaccinations would you consider yourself to be?	Somewhat hesitant/Very hesitant	Not sure	Not at all hesitant/Not too hesitant
Beliefs	6. Children receiving more vaccinations are good for them.	Disagree/Strongly Disagree	Not sure	‘Strongly Agree/Agree
	7. I believe that many of the illnesses prevented by vaccines are severe.	Disagree/Strongly Disagree	Not sure	‘Strongly Agree/Agree
	8. It is better for my child to develop immunity by getting sick than vaccination.	‘Strongly Agree/Agree	Not sure	Disagree/Strongly Disagree
	9. It is better for children to get fewer vaccines at the same time.	‘Strongly Agree/Agree	Not sure	Disagree/Strongly Disagree
	10. How concerned about the potential serious side effect following vaccination?	Somewhat concerned/Very concerned	Not sure	Not at all concerned/Not too concerned
	11. How concerned about the vaccine efficacy?	Somewhat concerned/Very concerned	Not sure	Not at all concerned/Not too concerned
Attitudes	12. The only reason for get childhood vaccinations is they can enter daycare or school.	Yes	Not sure	No
Trust	13. I trust the information received about vaccine.	Disagree/Strongly Disagree	Not sure	‘Strongly Agree/Agree
	14. I can discuss my concern on vaccines with my doctors openly.	Disagree/Strongly Disagree	Not sure	‘Strongly Agree/Agree
	15. Overall, how much do you trust your child’s vaccination doctor?	0–5 points	6–7 points	8–10 points