Table 1.
Maternal characteristics of participants of the Jundiaí Zika Cohort, March 2016 to August 2017, Jundiaí, São Paulo, Brazil.
| ZIKV RT-PCR positive women (n = 44) | ZIKV RT-PCR negative women (n = 530) | p-valuea | |
|---|---|---|---|
| Age | |||
| 13–19 years | 10 (22.7%) | 84 (15.9%) | 0.47 |
| 20–34 years | 26 (59.1%) | 331 (62.5%) | |
| 35–46 years | 8 (18.2%) | 115 (21.7%) | |
| Missing | 0 | 0 | |
| Education | |||
| ≤ 8 years | 9 (20.9%) | 90 (17.5%) | 0.76 |
| 9–11 years | 12 (27.3%) | 118 (22.9%) | |
| 12 years | 16 (36.4%) | 229 (44.5%) | |
| > 12 years | 6 (14.0%) | 78 (15.2%) | |
| Missing | 1 (2.3%) | 15 (2.8%) | |
| Ethnicity/race | |||
| White | 23 (52.3%) | 278 (53.8%) | 0.97* |
| Mixed race | 16 (36.4%) | 177 (34.2%) | |
| Black | 4 (9.1%) | 52 (10.1%) | |
| Other (Asian/indigenous) | 1 (2.3%) | 10 (1.9%) | |
| Missing | 0 | 13 (2.5%) | |
| Relationship with partner | |||
| Married/co-habiting | 35 (79.6%) | 395 (76.0%) | 0.60 |
| Single/divorced/widowed | 9 (20.5%) | 125 (24.0%) | |
| Missing | 0 | 10 (1.9%) | |
| Type of delivery | |||
| Vaginal/forceps | 23 (52.3%) | 257 (50.7%) | 0.86 |
| C-section | 21 (47.7%) | 250 (49.3%) | |
| Missing | 0 | 23 (4.3%) | |
| Trimester when recruited | |||
| 1st | 2 (4.7%) | 26 (5.0%) | 0.97* |
| 2nd | 15 (34.9%) | 186 (35.8%) | |
| 3rd | 26 (60.5%) | 308 (59.2%) | |
| Missing | 1 (2.3%) | 10 (1.9%) | |
| Diabetes | |||
| Yes | 14 (32.6%) | 165 (32.7%) | 0.99 |
| No | 29 (67.4%) | 340 (67.3%) | |
| Missing | 1 (2.3%) | 25 (4.7%) | |
| Hypertension | |||
| Yes | 8 (18.2%) | 102 (20.2%) | 0.75 |
| No | 36 (81.8%) | 403 (79.8%) | |
| Missing | 0 | 25 (4.7%) | |
Percentages for all categories were calculated with exclusion of those with missing data from the denominator.
aAll p-values calculated using Chi2 test except for those labelled with asterisk which were calculated using Fisher’s exact test. The ‘missing’ category was not included as a category when the p-value was estimated.