Vaccine preferences driving vaccine-decision making of different target groups: a systematic review of choice-based experiments

Table 7 Overview of high-quality studies reporting relative statistical significance (vaccinees)

Category & domain (n=)*	Statistical significance**
Category & domain (n=)*	P < 0.10	P < 0.05	P < 0.01	Total	Not significant
Outcome
Protection duration (n = 6)	0	3	5	8	1
Vaccine effectiveness (n = 8)	0	5	9	14	1
Vaccine risk (n = 7)	0	4	11	15	0
Process
Dosing & visits (n = 3)	1	1	3	5	1
Time (n = 2)	0	0	0	0	2
Vaccination age (n = 2)	0	1	2	2	1
Vaccine accessibility (n = 1)	0	1	0	1	0
Cost
Cost (n = 5)	0	1	8	9	0
Other
Context (n = 1)	0	2	0	2	0
Disease risk (n = 2)	0	1	2	3	0
Information (n = 2)	1	1	3	5	0
Other disease related factors (n = 1)	0	0	0	0	2
Vaccine advice/support (n = 2)	1	0	4	5	0

*n = number of studies reporting domains. All nine studies reported statistical significance; ** Information is based on main models and pooled data when available (if not, data of separate models/classes wasused). Some studies included more than one attribute related to a particular domain. Totals could hence exceed the total number of studies incorporated.

ISSN: 1471-2334