Table 3.

Sources for information about influenza vaccination.

Age group	< 18 years (n = 141)				18 to 64 years (n = 634)				≥65 years (n = 366)
Information sources	Vac*	Unvac	OR (95%CI)	p	Vac	Unvac	OR (95%CI)	p	Vac	Unvac	OR (95%CI)	p
1. Newspapers/magazines	13	26	0.59 (0.14, 2.44)	0.47	52	157	0.55 (0.30, 1.02)	0.058	87	48	0.33 (0.15, 0.76)	0.009
2. TV/radio	22	37	1.27 (0.39, 1.13)	0.68	72	219	0.43 (0.25, 0.74)	0.025	105	48	0.81 (0.36, 1.83)	0.61
3. Internet	1	3	0.62 (0.01, 33.6)	0.81	5	15	1.02 (0.16, 6.40)	0.97	0	0	-	-
4. Medical facilities	22	15	4.21 (1.17, 15.1)	0.027	68	128	1.28 (0.74, 2.20)	0.37	135	20	6.18 (2.42, 15.7)	< 0.001
5. Town office	10	8	2.04 (0.35, 11.6)	0.42	36	79	0.98 (0.50, 1.90)	0.95	143	26	5.59 (2.26, 13.8)	< 0.001
6. Public health center	0	0	-	-	2	4	0.77 (0.03, 17.7)	0.87	6	2	1.07 (0.06, 19.1)	0.96
7. School	9	22	0.37 (0.09, 1.53)	0.17	3	12	0.25 (0.02, 2.21)	0.21	1	0	-	-
8. Family	20	22	3.07 (0.95, 9.82)	0.058	43	84	1.04 (0.56, 1.93)	0.88	49	11	3.29 (1.01, 10.6)	0.046
9. Acquaintances/friends	5	12	0.75 (0.15, 3.78)	0.73	19	51	0.62 (0.27, 1.41)	0.25	25	16	0.73 (0.22, 2.36)	0.60
10. Workplaces	0	2	-	-	45	44	2.40 (1.22, 4.75)	0.011	2	0	-	-
11. Almost none	0	7	-	-	1	32	0.04 (0.01, 0.34)	0.003	2	3	0.49 (0.06, 3.59)	0.048

* Vac: Vaccinated, Unvac: Unvaccinated, OR: Odds ratio, CI: Confidence interval.

-: Not available because of no respondents in vaccinated or unvaccinated group.

Note: ORs were calculated using a multivariate analysis adjusting for gender and year of survey, and values for response to information sources were weighted by the reciprocal of the number of sources selected by the respondent.