Table 1:
Demographic and pregnancy characteristics by study arm
| Demographic Characteristic | Control* | SNOO | p value† |
|---|---|---|---|
| n=56 | n=54 | ||
| Age at delivery‡ | 30.5±4.8 | 31.7±5.5 | 0.22 |
| Hispanic/Latino | 2 (4%) | 1 (2%) | 0.58 |
| Self-reported race | 0.34 | ||
| Asian or Pacific Islander | 2 (4%) | 1 (2%) | |
| Black | 10 (18%) | 10 (19%) | |
| White | 41 (73%) | 43 (80%) | |
| None of the above | 3 (5%) | 0 (0%) | |
| Partner status | 0.10 | ||
| Married or partnered | 43 (77%) | 49 (91%) | |
| Separated or divorced | 2 (4%) | 0 (0%) | |
| Single | 11 (20%) | 5 (9%) | |
| Annual household income | 0.20 | ||
| <$75,000 | 26 (46%) | 21 (39%) | |
| $75,000+ | 24 (43%) | 31 (57%) | |
| Prefer not to answer | 6 (11%) | 2 (4%) | |
| Insurance status during pregnancy | 0.32 | ||
| Private | 36 (65%) | 42 (78%) | |
| Public | 17 (30%) | 9 (17%) | |
| Other | 1 (2%) | 1 (2%) | |
| No insurance | 2 (4%) | 2 (4%) | |
| Other children also living at home | 23 (41%) | 25 (46%) | 0.58 |
| Smoking within the past 2 years | 8 (14%) | 6 (11%) | 0.62 |
| Pre-delivery diagnosis of depression | 18 (32%) | 17 (31%) | 0.94 |
| Intent to breastfeed | 49 (88%) | 48 (89%) | 0.82 |
| Gestational age at delivery§ | 38.1 [IQR 37.4–39.2] | 38.1 [IQR 37.3–39.0] | 0.62 |
| Mode of delivery | 0.33 | ||
| Vaginal delivery | 31 (55%) | 35 (65%) | |
| Forceps-assisted vaginal delivery | 1 (2%) | 1 (2%) | |
| Vacuum-assisted vaginal delivery | 3 (5%) | 0 (0%) | |
| Cesarean delivery | 21 (38%) | 18 (33%) | |
| Blood loss during delivery (mL)§ | 300 [IQR 150–500] | 300 [IQR 200–550] | 0.32 |
| Neonatal birthweight (g)§ | 3055 [IQR 2685–3305] | 3155 [IQR 2915–3700] | 0.08 |
| Type of HDP | 0.31 | ||
| Gestational hypertension | 33 (59%) | 24 (44%) | |
| Preeclampsia without severe features | 11 (20%) | 15 (28%) | |
| Preeclampsia with severe features | 12 (21%) | 15 (28%) | |
| Gestational age at HDP diagnosis§ | 37.9 [IQR 36.4–39.1] | 38.0 [IQR 36.4–38.7] | 0.84 |
*
Data are reported as n (%) unless otherwise indicated
†
p values indicate the statistical testing result from two-sample t-tests for normally distributed continuous variables, Mann-Whitney U tests for non-normally distributed continuous variables, or Pearson’s chi-squared or Fisher’s exact test for categorical variables
‡
Data are reported as mean±standard deviation
§
Data are reported as median [IQR]