Table 1.
Maternal, infant, and sampling demographics
| Maternal Demographics | Number (%), Mean ± SD |
|---|---|
| Maternal age, y | 30.5 ± 5.0 |
| Maternal BMI, kg/m2 | 27.6 ± 7.1 |
| Gravidity | |
| 1 | 50 (33.1%) |
| 2 | 41 (27.2%) |
| ≥ 3 | 60 (39.7%) |
| Ethnicity | |
| Hispanic white | 1 (0.7%) |
| White | 118 (78.1%) |
| Black | 27 (17.9%) |
| Other | 5 (3.3%) |
| Current smoker | |
| Yes | 10 (6.6%) |
| No | 141 (93.4%) |
| Preeclampsia | |
| Yes | 4 (2.8%) |
| No | 139 (97.2%) |
| Hypertension | |
| Yes | 15 (10.5%) |
| No | 128 (89.5%) |
| Diabetes | |
| Yes | 9 (6.3%) |
| No | 134 (93.7%) |
| Infant demographics | |
| Infant sex | |
| Female | 61 (42.7%) |
| Male | 82 (57.3%) |
| Birth weight, g | 3487 ± 489 |
| Birth gestation, wks | 39.4 ± 1.4 |
| Birth weight z score | 0.56 ± 0.99 |
| Sampling demographics | |
| Second trimester urine sample gestation, wks | 17.3 ± 2.4 |
| Third trimester urine sample gestation, wks | 33.9 ± 1.2 |
| Second trimester blood sample gestation, wks | 16.7 ± 2.4 |
| Third trimester blood sample gestation, wks | 33.3 ± 1.1 |
| Second trimester blood sample time, h after midnight | 11.0 ± 2.2 |
| Third trimester blood sample time, h after midnight | 10.6 ± 2.5 |
Of the 151 participants included in the study, the following data were missing: maternal BMI n = 2, infant demographics and maternal health during pregnancy n = 8, second trimester serum cortisol n = 1, third trimester serum cortisol n = 2.
Abbreviation: BMI, body mass index.