Table 2.

Main results.

Variables		Total	Immune	N%	95.0% C.I.	Univariate Logistic Regression Analysis	Multivariate Logistic Regression Analysis
Gender	Female	225	194	86.2%	81.0–90.4	p < 0.05	p < 0.01
	Male	148	114	77.0%	69.4–83.5
Age class	18–23	229	198	86.5%	81.3–90.6	p < 0.05
	>23	144	110	76.4%	68.6–83.1
Vaccination	1 dose	87	72	82.8%	73.2–90. 0	n.s.
	2 doses	261	225	86.2%	81.4–90.1

n.s.: not statistically significant.