Table 1 Frequency of past and recent dengue infection among parturients and the umbilical cord sera and the Kappa agreement for IgG placental transfer
Dengue infection | Parturients | Cord serum | Kappa |
|---|---|---|---|
(n = 505) | (n = 505) | ||
Past Infection | |||
IgG positive (95% CI) | 53.9% (49.4–58.3) | 55.0% (50.6–59.4)* | 0.96 |
Recent infection | |||
IgM**positive and RT-PCR detection (95% CI) | 2.8% (1.4–4.4) | 0% | na |