Table 3.

Low-CMV-IgG-avidity prevalence estimates (unweighted) for both CMV IgM-positive and IgM-negative sera from the NHANES survey, according to avidity test cutoff

CMV IgM status (no. tested)% prevalence of low IgG avidity (no. of specimens) by avidity test cutoff
0.800.700.60
IgM+ (126)34.9 (44)18.3 (23)11.1 (14)
IgM (129)8.5 (11)2.3 (3)0.8 (1)
IgM+ and IgM combined (255)6.6 (55)2.0 (26)0.8 (15)