Table 4.

Impact of attributes on the decision certainty to refuse or accept hypothetical vaccination, among serial non-demanders and serial demanders. January–March 2020.

	Serial non-demanders n = 88		Serial demanders = 659
Certainty	Coefficient	95%-CI	Coefficient	95%-CI
Disease
Respiratory disease	ref		ref
Cancer	−0.23	[-0.73,0.27]	−0.01	[-0.10,0.08]
Genital warts	0.00	[-0.13,0.12]	−0.04	[-0.20,0.12]
Safety
No side effect	ref		ref
Scientific surveillance	0.02	[-0.08,0.13]	−0.15	[-0.35,0.05]
Safety other countries	−0.01	[-0.22,0.20]	−0.81***	[-1.02,-0.60]
Benefit/risk	0.07	[-0.33,0.47]	−0.93***	[-1.22,-0.65]
Indirect Protection
Protects only you	ref		ref
Protects other people	−0.02	[-0.41,0.38]	−0.01	[-0.09,0.07]
Elimination	0.09	[-0.29,0.47]	0.09	[-0.03,0.21]
Coverage
Not enough	ref		ref
Already a third	0.11	[-0.01,0.24]	0.28***	[0.14,0.42]
Most adolescents	0.07	[-0.31,0.44]	0.42***	[0.33,0.52]
Other countries 80%	0.20	[-0.02,0.42]	0.33***	[0.20,0.47]

***: p-value<0.001. Note: clustered standard errors at the school level.

Note: the dependent variable is choice certainty (0–10).