Table 2.
Prevalence estimates (weighted) for CMV IgG low avidity by age among the 126 IgM+ sera from the NHANES national survey
| Age of women (yr) | No. tested | Median % positive (95% CI) by test cutoff for low aviditya |
||
|---|---|---|---|---|
| 0.8 | 0.7 | 0.6 | ||
| 12–19 | 36 | 67.4 (35.3–88.6) | 33.0 (11.6–64.9) | 12.3 (2.9–40.1) |
| 20–29 | 52 | 30.7 (16.8–49.1) | 16.5 (7.1–33.8) | 10.4 (3.8–25.6) |
| 30–49 | 38 | 17.1 (7.1–35.7) | 3.1 (0.6–14.0) | 3.1 (0.6–14.0) |
| All ages | 126 | 31.1 (20.1–44.6) | 13.5 (6.1–27.5) | 7.6 (3.5–15.9) |
a
P values for trends with age were 0.004, 0.048, and 0.3 for cutoff values of 0.8, 0.7, and 0.6, respectively. 95% CI, 95% confidence intervals.