Table 1.
Sociodemographic and clinical characteristics and arbovirus immune status of the study population.
| Characteristic | (n = 780) a |
|---|---|
| Sociodemographic | |
| Age (in years), mean (±SD) | 26.5 (3.6) |
| Self-reported Race/skin color, n (%) | |
| Mixed | 480 (61.7) |
| White | 157 (20.2) |
| Black | 141 (18.1) |
| Family income (in minimum wages) | |
| ≤2 | 640 (82.8) |
| >2 | 133 (17.2) |
| Schooling, n (%) | |
| Illiterate/Elementary | 186 (23.8) |
| High school/Higher Education | 594 (76.2) |
| Clinical | |
| Gestational age (in weeks) at admission, mean (±SD) | 36.9 (±3.2) |
| Obstetric complication in previous pregnancy, n (%) b | 221 (45.9) |
| Prenatal consultation in the current pregnancy, n (%) | 758 (97.2) |
| Pregnancy, n (%) | |
| Single | 751(96.3) |
| Multiple | 29 (3.7) |
| Type of obstetric complication, n (%) | |
| Hypertensive disorder of pregnancy c | 469 (60.1) |
| Gestational diabetes | 98 (12.6) |
| Preterm labor/premature birth | 110 (14.1) |
| HELLP syndrome (complete/incomplete) | 35 (4.5) |
| Others d | 68 (8.7) |
| Arbovirus infection status, n (%) | |
| Previous DENV infection (IgG positives) | 726 (93.1) |
| Active/recent DENV infection e | 3 (0.4) |
| Active/recent ZIKV infection e | 54 (6.9) |
| Active/recent CHIKV e | 69 (8.8) |
| Dual active/recent infection (CHIKV and ZIKV) | 4 (0.5) |
a Numbers may vary due to missing values; b 481 multiparous pregnant women; c gestational hypertension, pre-eclampsia, or eclampsia; d obstetrical bleeding, oligohydramnios, chorioamnionitis, placenta abruption, and premature amniorrhexis. e qRT-PCR positive in the first sample and/or IgM or IgG (PRNT) seroconversion.