Table 1:
Patient characteristics, stratified by whether had maternal cardiac disease
| Any complex heart disease | ||||
|---|---|---|---|---|
| Overall (N=14,160) |
No (N=13,942) |
Yes (N=218) |
p | |
| Mean (Standard Deviation) or % | ||||
| Obstetric Characteristics | ||||
| Cesarean Delivery | 4,283 (30.2) | 4,191 (30.1) | 92 (42.2) | <0.001 |
| Gestational age (days) | 271.0 (14.9) | 271.1 (14.8) | 266.1 (18.5) | <0.001 |
| Parity | 0.88 | |||
| Nulliparous (%) | 5,811 (41.0) | 5,712 (41.0) | 99 (45.4) | |
| Para 1 | 4,549 (32.1) | 4,483 (32.2) | 66 (30.3) | |
| Para 2 | 2,229 (15.7) | 2,196 (15.8) | 33 (15.1) | |
| Para 3 or more | 1,571 (11.2) | 1,551 (11) | 20 (9.2) | |
| Prior Cesarean Births | 0.21 | |||
| No prior | 11,437 (80.8) | 11,269 (80.8) | 168 (77.1) | |
| One prior | 2,119 (15) | 2,083 (14.9) | 36 (16.5) | |
| Two prior | 604 (4.3) | 590 (4.2) | 14 (6.4) | |
| Demographics | ||||
| Age (years) | 29.4 (5.9) | 29.4 (5.9) | 29.7 (5.6) | 0.50 |
| Race/Ethnicity | <0.001 | |||
| Other | 567 (4.0) | 556 (4.0) | 11 (5.0) | |
| White | 4,991 (35.2) | 4,880 (35.0) | 111 (50.9) | |
| Black | 4,715 (33.3) | 4,646 (33.3) | 69 (31.7) | |
| Hispanic/Latina | 2,953 (20.9) | 2,933 (21.0) | 20 (9.2) | |
| Asian | 934 (6.6) | 927 (6.6) | 7 (3.2) | |
| Body mass index (kg/m2) | 32.2 (6.7) | 32.2 (6.7) | 32.2 (8.0) | 0.97 |
| Comorbid Conditions | ||||
| Alcohol abuse | 155 (1.1) | 150 (1.1) | 5 (2.3) | 0.09 |
| Asthma | 2,449 (17.3) | 2,389 (17.1) | 60 (27.5) | <0.001 |
| Gestational diabetes | 1,603 (11.3) | 1,581 (11.3) | 22 (10.1) | 0.56 |
| Pregestational diabetes | 451 (3.2) | 445 (3.2) | 6 (2.8) | 0.71 |
| Drug abuse | 1,683 (11.9) | 1,660 (11.9) | 23 (10.6) | 0.54 |
| HIV Disease | 104 (0.7) | 104 (0.7) | 0 (0.0) | 0.20 |
| Chronic hypertension | 787 (5.6) | 763 (5.5) | 24 (11.0) | <0.001 |
| Chronic kidney disease | 59 (0.4) | 55 (0.4) | 4 (1.8) | 0.001 |
| Gestational hypertension | 1,330 (9.4) | 1,309 (9.4) | 21 (9.6) | 0.90 |
| Preeclampsia without severe features | 673 (4.8) | 665 (4.8) | 8 (3.7) | 0.45 |
| Preeclampsia with severe features or ecclampsia | 1,016 (7.2) | 999 (7.2) | 17 (7.8) | 0.72 |
| Multiple gestations | 394 (2.8) | 383 (2.7) | 11 (5.0) | 0.04 |
| Sickle Cell Disease | 449 (3.2) | 445 (3.2) | 4 (1.8) | 0.26 |
| Lupus | 81 (0.6) | 77 (0.6) | 4 (1.8) | 0.01 |
| Tobacco Use | 1,212 (8.6) | 1,194 (8.6) | 18 (8.3) | 0.87 |
P-values by t-test for continuous variables and chi2 test for binary / categorical variables
Missing values in Body Mass Index (1,969 observations)