Table 2.

Correlation table between cellular immunity, antibodies titer, study participant’s age, the time since the last contact with the viral antigen, and the number of symptoms study participants experienced.

		Cellular Immunity (mIU/mL)	Antibodies (IU/mL)	Age (Years)	Time (Months)	Number of Symptoms
Cellular immunity (mIU/mL)	r	1.000	0.801 **	0.189 **	−0.095	0.400 **
	p	.	<0.001	0.007	0.240	<0.001
	N	200	200	200	155	200
Antibodies (IU/mL)	r	0.801 **	1.000	0.225 **	−0.426 **	0.314 **
	p	<0.001	.	0.001	<0.001	<0.001
	N	200	200	200	155	200
Age (years)	r	0.189 **	0.225 **	1.000	0.073	−0.024
	p	0.007	0.001	.	0.365	0.731
	N	200	200	200	155	200
TIME (months)	r	−0.095	–0.426 **	0.073	1.000	0.182 *
	p	0.240	<0.001	0.365	.	0.023
	N	155	155	155	155	155
Number of symptoms	r	0.400 **	0.314 **	−0.024	0.182 *	1.000
	p	<0.001	<0.001	0.731	0.023	.
	N	200	200	200	155	200

r—Spearman’s correlation coefficient; N—sample size; TIME- the time since the last contact with the viral antigen; *—correlation is significant at the 0.05 level (2-tailed); **—correlation is significant at the 0.01 level (2-tailed).