Table 2.

Spearman’s correlation coefficients assessing the relationship between IFN-γ and granzyme B levels before and after vaccination.

n = 32	IFN-γ and Granzyme B
	Pre-Vaccine	2 wks Post-Vaccine	5 mos Post-Vaccine	2 wks Post-Vaccine/Pre-Vaccine
H1N1	0.66 **	0.74 **	0.50 **	0.59 **
H3N2	0.62 **	0.71 **	0.60 **	0.56 **
Yamagata lineage	0.74 **	0.80 **	0.77 **	0.47 **
Victoria lineage	0.75 **	0.75 **	0.63 **	0.61 **

Notes: ** p < 0.01.