Table 2.

Results of analysis using models for risk trajectories (n = 8,273).

		Model 1		Model 2
		OR (95% CI)	P-value	OR (95% CI)	P-value
Levels of knowledge of vaccines	Low (ref: very low)	0.93 (0.68–1.27)	0.644	0.93 (0.69–1.27)	0.665
	Moderate	1.20 (0.94–1.55)	0.15	1.21 (0.94–1.56)	0.138
	High	1.49 (1.16–1.91)	0.002	1.50 (1.17–1.93)	0.001
Age groups	Young (ref: elderly)	0.87 (0.68–1.10)	0.239	0.86 (0.67–1.11)	0.243
	Middle age	0.97 (0.80–1.18)	0.743	0.96 (0.78–1.17)	0.668
Sex	Women (ref: men)	1.06 (0.90–1.25)	0.463	1.06 (0.89–1.25)	0.524
Area	Inland areas (ref: coastal and mountainous areas)			1.10 (0.90–1.33)	0.359
Occupation	Health care workers (ref: government workers)			1.02 (0.75–1.36)	0.924
	Service			1.13 (0.86–1.48)	0.39
	Schools			1.00 (0.69–1.44)	0.978
	Others			1.02 (0.78–1.34)	0.867
The number of households	Living alone (ref: living with 5 persons or more)			1.03 (0.78–1.34)	0.858
	Living with 2–4 persons			0.86 (0.71–1.05)	0.147
Levels of engagement of preventive measures	Moderate (ref: high)			1.16 (0.98–1.37)	0.631
	Low			0.91 (0.73–1.13)	0.268
	Poor			0.89 (0.55–1.44)	0.929

Abbreviations: CI, confidence interval; OR, odds ratio.