Table 2.

Multivariate logistic analysis to characterize factors associated with the different outcome of interest.

Variable	OR	SE	95% CI	p value
Model 1. Knowledge that meningitis is a vaccine-preventable disease
and that adolescent could be vaccinated
Log likelihood = −468.06, χ2 = 80.15 (8 df), p<0.0001 (sample size = 752)
Who talk with parents about vaccinations	2.33	0.5	1.53-3.56	<0.001
Who have received information about vaccinations from physicians	1.75	0.28	1.28-2.39	<0.001
Females	1.69	0.27	1.24-2.32	0.001
Age 11–13	0.56	0.1	0.38-0.8	0.002
Age 17–19	1.0*	—	—	—
Positive attitude towards the utility of information received about vaccinations	1.7	0.31	1.18-2.44	0.005
Who don't need additional information about meningitis	0.68	0.12	0.48-0.97	0.032
Who have at least a parent that work	1.24	0.21	0.89-1.73	0.195
Who have at least one graduate parent	1.23	0.2	0.89-1.7	0.215
Backward elimination
Age 14–16
Model 2. Positive attitude towards the utility of vaccinations in order to prevent meningitis
Log likelihood = −324.11, χ2 = 90.59 (8 df), p<0.0001 (sample size = 654)
Age 11–13	2.31	0.51	1.49-3.56	<0.001
Age 17–19	1.0*	—	—	—
Positive attitude towards the utility of information received about vaccinations	3.48	0.72	2.32-5.21	<0.001
Males	0.53	0.11	0.36-0.8	0.002
Who have at least one vaccination in the last year	1.51	0.31	1.01-2.27	0.05
Who have at least one visit to the physician in the last year	1.8	0.56	0.98-3.3	0.057
Physician discussed about meningococcal vaccine	1.43	0.32	0.93-2.21	0.107
Knowledge that adolescents could get meningitis	1.23	0.25	0.82-1.83	0.309
Who talk with parents about vaccinations	1.31	0.37	0.75-2.28	0.336
Backward elimination
Age 14–16
Knowledge that meningitis is a vaccine-preventable disease and adolescent could be vaccinated
Who have received information about vaccinations from physicians
Who have heard about meningococcal vaccine
Model 3. Perception of being at high risk of contracting meningitis
Log likelihood = −356.49, χ2 = 66.78 (9 df), p<0.0001 (sample size = 655)
Age 11–13	3.19	0.81	1.94-5.24	<0.001
Age 14–16	1.62	0.37	1.04-2.54	0.034
Age 17–19	1.0*	—	—	—
Physician discussed about meningococcal vaccine	2	0.42	1.32-3.01	0.001
Who need additional information about meningitis	1.56	0.31	1.04-2.33	0.030
Who did not have at least one parent who is a health care professional	0.38	0.18	0.15-0.95	0.039
Females	1.45	0.27	1.01-2.10	0.050
Knowledge that meningitis is a vaccine-preventable disease and adolescent could be vaccinated	1.46	0.28	1.01-2.14	0.051
Who have received information about vaccinations from physicians	1.25	0.24	0.86-1.83	0.239
Who don't have at least one graduate parent	0.82	0.15	0.56-1.19	0.296
Backward elimination
Who have at least one visit to the physician in the last year
Model 4. Willingness to receive meningococcal vaccine
Log likelihood = −282.51, χ2 = 107.08(11 df), p<0.0001 (sample size = 520)
Age 11–13	2.89	0.95	1.52-5.5	0.001
Age 14–16	1.32	0.3	0.85-2.06	0.211
Age 17–19	1.0*	—	—	—
Positive attitude towards the utility of vaccinations	5.15	1.31	3.13-8.49	<0.001
Who have at least one visit to the physician in the last year	1.72	0.44	1.04-2.83	0.034
Who need additional information about meningitis	1.64	0.39	1.02-2.61	0.039
Knowledge that meningitis is a vaccine-preventable disease and adolescent could be vaccinated	1.42	0.3	0.94-2.16	0.097
Who have at least a chronic disease	1.49	0.37	0.92-2.42	0.108
Who talk with parents about vaccinations	1.5	0.4	0.89-2.55	0.129
Who have received information about vaccinations from physicians	1.34	0.29	0.88-2.04	0.175
Perception of risk of contracting meningitis	1.4	0.35	0.86-2.3	0.175
Who don't have at least one parent who is a health care professional	0.71	0.25	0.35-1.43	0.343
Backward elimination
Positive attitude towards the utility of information received about vaccinations
Physician discussed about meningococcal vaccine

^*Reference category in multivariate analysis.