Table 1.
Maternal, delivery, and neonatal characteristics by prenatal marijuana exposure
| No Marijuana n=1732 | Marijuana n= 135 | p value | |
|---|---|---|---|
| Maternal characteristics | |||
| Age (median, IQR) | 26 (21,30) | 26 (22,31) | 0.33 |
| Race/ethnicity, n (%) | <0.001 | ||
| Black | 741 (42.8) | 91 (67.4) | |
| White | 629 (36.3) | 38 (28.2) | |
| Other | 362 (20.9) | 6 (4.4) | |
| High school or less | 1231 (71.1) | 111 (82.2) | 0.006 |
| Missing | 4 (0.2) | 0 (0) | |
| Married | 849 (49.2) | 32 (23.7) | <0.0001 |
| Missing | 5 (0.3) | 0 (0) | |
| Obese (BMI>30) | 387 (22.3) | 23 (17.0) | 0.07 |
| Missing | 197 (11.4) | 8 (5.9) | |
| Multiparous | 1115 (64.5) | 89 (65.9) | 0.72 |
| Prior PTB | 484 (27.9) | 36 (26.7) | 0.75 |
| Smoking | 431 (24.9) | 104 (77.0) | <0.0001 |
| Other drugs | 58 (3.4) | 43 (31.9) | <0.0001 |
| Diabetes | 91 (5.3) | 5 (3.7) | 0.43 |
| Chronic medical conditions (HTN) | 304 (17.6) | 17 (12.6) | 0.14 |
| Delivery characteristics | |||
| No prenatal care | 123 (7.1) | 23 (17.4) | <0.0001 |
| Any magnesium exposure | 1010 (58.4) | 86 (63.7) | 0.22 |
| Corticosteroids | 1683 (97.2) | 131 (97.0) | 0.93 |
| PPROM | 1519 (87.7) | 123 (91.1) | 0.24 |
| Cesarean delivery | 647 (37.4) | 39 (28.9) | 0.05 |
| Neonatal characteristics | |||
| Gestational age (wks) | 29 (27, 32) | 30 (28, 31) | 0.41 |
| Preterm < 28 wks | 534 (30.8) | 35 (25.9) | 0.23 |
| Birth weight (grams) | 1355 (981,1722) | 1360 (1075,1640) | 0.88 |
| Male infant | 931 (53.8) | 68 (50.4) | 0.45 |
| Five-minute Apgar < 7 | 318 (18.4) | 22 (16.3) | 0.54 |
| Missing | 3 (0.2) | 0 (0) | |
Abbreviations: IQR, interquartile range; BMI, body mass index; PTB, preterm birth; HTN, hypertension; PPROM, preterm premature rupture of membranes
Values are n(%),median (interquartile range)