Table 1 Perinatal characteristics of the non-weighted cohort.
Variables | Non-EHMD (n = 800) | EHMD (n = 258) | p valuea | Standardized mean difference |
|---|---|---|---|---|
Maternal | ||||
Age (year), median [IQR] | 32 [28, 35] | 33 [30, 36] | 0.004 | 0.208 |
Hypertensive disorder of pregnancy, n (%) | 239 (29.9) | 79 (30.6) | 0.882 | 0.016 |
Gestational diabetes mellitus, n (%) | 91 (11.4) | 29 (11.2) | 1.000 | 0.004 |
Obesity, n (%) | 281 (35.1) | 74 (28.7) | 0.067 | 0.139 |
Placental abruption, n (%) | 125 (15.6) | 39 (15.1) | 0.922 | 0.014 |
Chorioamnionitis, n (%) | 58 (7.2) | 29 (11.2) | 0.058 | 0.138 |
Antenatal corticosteroids, n (%) | 750 (93.8) | 250 (96.9) | 0.076 | 0.150 |
Non-smoker during pregnancy, n (%) | 744 (93.0) | 229 (88.8) | 0.179 | 0.150 |
Vaginal delivery, n (%) | 247 (30.9) | 60 (23.3) | 0.023 | 0.172 |
Fetal growth restriction, n (%) | 11 (1.4) | 7 (2.7) | 0.243 | 0.095 |
Neonatal | ||||
Gestational age (week), median [IQR] | 30 [27,31] | 27 [25,29] | <0.001 | 0.759 |
Hispanic, n (%) | 451 (56.4) | 151 (58.5) | 0.122b | 0.252 |
Male Sex, n (%) | 412 (51.5) | 134 (51.9) | 0.960 | 0.009 |
Birth weight (g), mean±sd | 1303.1 (391.5) | 963.5 (285.0) | <0.001 | 0.992 |
Birth weight percentile, median [IQR] | 54.5 [30.0, 76.8] | 47.0 [17.0, 67.8] | <0.001 | 0.331 |
Birth length percentile, median [IQR] | 52.5 [31.6, 73.6] | 45.9 [16.9, 73.0] | 0.013 | 0.177 |
Birth head circumference percentile, median [IQR] | 52.6 [33.9, 74.8] | 50.1 [25.4, 74.8] | 0.061 | 0.134 |
SGA, n (%) | 77 (9.6) | 49 (19.0) | <0.001 | 0.270 |
LGA, n (%) | 77 (9.6) | 7 (2.7) | 0.001 | 0.290 |
1-min APGAR, median [IQR] | 7 [5,8] | 6 [4,7] | <0.001 | 0.255 |
5-min APGAR, median [IQR] | 8 [8, 9] | 8 [7, 9] | 0.006 | 0.199 |
