Table 2.

Correlation of Breast Milk Cytomegalovirus (CMV) Load and CMV-Specific Immune Responses in Milk and Blood of CMV-Seropositive Mothers of Very Low-Birth-Weight Preterm Infants

CMV-specific response	r	P
Milk CMV-specific IFN-γ response (SFUs)	−0.06	.76
Blood CMV-specific IFN-γ response (SFUs)	0.12	.54
Normalized milk CMV-binding IgG titer	0.19	.31
Normalized plasma CMV-binding IgG titer	0.36	.05
Normalized milk CMV-binding IgA titer	0.19	.32
Normalized plasma CMV-binding IgA titer	−0.07	.73
Milk neutralizing antibody titer	−0.05	.80
Plasma neutralizing antibody titer	−0.04	.83
Milk CMV-binding IgG avidity	−0.47	.009
Plasma CMV-binding IgG avidity	−0.12	.53
Milk CMV-binding IgA avidity	0.12	.54
Plasma CMV-binding IgA avidity	0.26	.17
Milk sodium-potassium ratio	−0.18	.35
Weeks postpartum	−0.06	.77

Abbreviations: IFN interferon; Ig, immunoglobulin; SFUs, spot-forming units.