Table 2.
Characteristics of patients with obstetric hemorrhage (OH) and transfusion compared to those without each condition. Row percentages and Chi-squared p-values are shown. Fifty-five women without valid data on OH and transfusion were excluded from the Table.
| Ledger Variable | No Hemorrhage N (%) | Hemorrhage N (%) | No Transfusion N (%) | Transfusion N (%) |
|---|---|---|---|---|
| Total | ||||
| All Subjects | 15,283 (97.5) | 387 (2.5) | 15,232 (97.2) | 438 (2.8) |
| Age | (p = 0.0535) | (p = 0.4921) | ||
| Missing | 27 (73.0) | 10 (27.0) | 29 (78.4) | 8 (21.6) |
| <=19 | 2,012 (98.0) | 42 (2.0) | 1,993 (97.0) | 61 (3.0) |
| 20–24 | 4,305 (98.1) | 84 (1.9) | 4,286 (97.7) | 103 (2.3) |
| 25–29 | 4,130 (97.4) | 109 (2.6) | 4,122 (97.2) | 117 (2.8) |
| 30–34 | 2,747 (97.2) | 79 (2.8) | 2,739 (96.9) | 87 (3.1) |
| 35–39 | 1,572 (97.1) | 47 (2.9) | 1,572 (97.1) | 47 (2.9) |
| 40+ | 490 (96.8) | 16 (3.2) | 491 (97.0) | 15 (3.0) |
| Race | ||||
| Missing | 4,035 (97.5) | 102 (2.5) | 4,017 (97.1) | 120 (2.9) |
| Asian | 129 (96.3) | 5 (3.7) | 131 (97.8) | 3 (2.2) |
| Black | 10,505 (97.6) | 253 (2.4) | 10,469 (97.3) | 289 (2.7) |
| Colored | 569 (95.5) | 27 (4.5) | 570 (95.6) | 26 (4.4) |
| White | 45 (100.0) | 0 (0.0) | 45 (100.0) | 0 (0.0) |
| Gravidity (incl current preg) | (p < 0.0001) | (p = 0.0017) | ||
| Missing | 48 (100.0) | 0 (0.0) | 48 (100.0) | 0 (0.0) |
| 1 | 5,100 (98.2) | 91 (1.8) | 5,063 (97.5) | 128 (2.5) |
| 2 | 4,609 (97.5) | 120 (2.5) | 4,614 (97.6) | 115 (2.4) |
| 3 | 3,097 (97.1) | 91 (2.9) | 3,089 (96.9) | 99 (3.1) |
| 4+ | 2,429 (96.6) | 85 (3.4) | 2,418 (96.2) | 96 (3.8) |
| Parity (before current delivery) | (p = 0.0008) | (p = 0.0222) | ||
| Missing | 26 (100.0) | 0 (0.0) | 26 (100.0) | 0 (0.0) |
| 0 | 5,546 (98.1) | 105 (1.9) | 5,514 (97.6) | 137 (2.4) |
| 1 | 4,881 (97.5) | 125 (2.5) | 4,875 (97.4) | 131 (2.6) |
| 2 | 2,963 (96.8) | 97 (3.2) | 2,961 (96.8) | 99 (3.2) |
| 3 | 1,197 (97.1) | 36 (2.9) | 1,186 (96.2) | 47 (3.8) |
| 4+ | 670 (96.5) | 24 (3.5) | 670 (96.5) | 24 (3.5) |
| Birth Weight (Grams) | (p = 0.0023) | (p < 0.0001) | ||
| Missing | 11 (91.7) | 1 (8.3) | 9 (75.0) | 3 (25.0) |
| <=2,100 | 1,590 (96.4) | 59 (3.6) | 1,539 (93.3) | 110 (6.7) |
| 2,105–2,525 | 1,505 (97.4) | 40 (2.6) | 1,501 (97.2) | 44 (2.8) |
| 2,530–2,760 | 1,536 (98.1) | 30 (1.9) | 1,522 (97.2) | 44 (2.8) |
| 2,765–2,925 | 1,548 (98.2) | 29 (1.8) | 1,538 (97.5) | 39 (2.5) |
| 2,930–3,060 | 1,517 (98.1) | 29 (1.9) | 1,526 (98.7) | 20 (1.3) |
| 3,065–3,190 | 1,563 (97.9) | 33 (2.1) | 1,565 (98.1) | 31 (1.9) |
| 3,195–3,320 | 1,510 (98.2) | 28 (1.8) | 1,507 (98.0) | 31 (2.0) |
| 3,323–3,480 | 1,532 (97.4) | 41 (2.6) | 1,535 (97.6) | 38 (2.4) |
| 3,485–3,700 | 1,518 (97.0) | 47 (3.0) | 1,525 (97.4) | 40 (2.6) |
| 3,705+ | 1,453 (96.7) | 50 (3.3) | 1,465 (97.5) | 38 (2.5) |
| Gestational Age (Weeks) | (p < 0.0001) | (p < 0.0001) | ||
| Missing | 48 (100.0) | 0 (0.0) | 48 (100.0) | 0 (0.0) |
| <=34 | 1,860 (96.1) | 75 (3.9) | 1,804 (93.2) | 131 (6.8) |
| 35–36 | 1,402 (97.0) | 43 (3.0) | 1,402 (97.0) | 43 (3.0) |
| 37 | 1,498 (97.0) | 47 (3.0) | 1,497 (96.9) | 48 (3.1) |
| 38 | 2,474 (97.4) | 65 (2.6) | 2,471 (97.3) | 68 (2.7) |
| 39 | 2,095 (98.1) | 41 (1.9) | 2,101 (98.4) | 35 (1.6) |
| 40 | 4,237 (98.1) | 80 (1.9) | 4,235 (98.1) | 82 (1.9) |
| 41 | 1,313 (98.1) | 26 (1.9) | 1,317 (98.4) | 22 (1.6) |
| 42+ | 356 (97.3) | 10 (2.7) | 357 (97.5) | 9 (2.5) |
| Hospital | (p < 0.0001) | (p < 0.0001) | ||
| CHB | 7,332 (97.2) | 215 (2.8) | 7,357 (97.5) | 190 (2.5) |
| GSH | 1,332 (95.6) | 61 (4.4) | 1,307 (93.8) | 86 (6.2) |
| KEH | 2,382 (98.7) | 32 (1.3) | 2,334 (96.7) | 80 (3.3) |
| MMH | 4,237 (98.2) | 79 (1.8) | 4,234 (98.1) | 82 (1.9) |
| Delivery | (p = 0.2853) | (p = 0.0074) | ||
| BBA | 186 (97.4) | 5 (2.6) | 179. (93.7) | 12 (6.3) |
| C-section | 6,190 (97.3) | 172 (2.7) | 6,176 (97.1) | 186 (2,9) |
| Vaginal | 8,907 (97.7) | 210 (2.3) | 8,877 (97.4) | 240 (2.6) |
| Prenatal Care | (p < 0.0001) | (p < 0.0001) | ||
| Missing | 85 (100.0) | 0 (0.0) | 83 (97.6) | 2 (2.4) |
| Booked | 14,664 (97.6) | 355 (2.4) | 14,639 (97.5) | 380 (2.5) |
| Unbooked | 534 (94.3) | 32 (5.7) | 510 (90.1) | 56 (9.9) |
| HIV Status | (p = 0.0776) | (p < 0.0001) | ||
| Missing | 368 (97.1) | 11 (2.9) | 363 (95.8) | 16 (4.2) |
| Negative | 11,074 (97.7) | 264 (2.3) | 11,064 (97.6) | 274 (2.4) |
| Postitive | 3,841 (97.2) | 112 (2.8) | 3,805 (96.3) | 148 (3.7) |
| CD4 Category | (p = 0.01350) | (p = 0.6938) | ||
| Missing | 457 (95.8) | 20 (4.2) | 459 (96.2) | 18 (3.8) |
| < 200 | 648 (98.3) | 11 (1.7) | 631 (95.8) | 28 (4.2) |
| 200–349 | 1,072 (96.8) | 36 (3.2) | 1,066 (96.2) | 42 (3.8) |
| 350+ | 1,664 (97.4) | 45 (2.6) | 1,649 (96.5) | 60 (3.5) |
*
NA-Not applicable: Chi square test was not performed due to high proportion of missing data in the race category
Abbreviations
CHB: Chris-Hani Baragwanath Hospital
MMH: Mowbray Maternity Hospital
GSH: Groote Schuur Hospital
KEH: King Edward VIII hospital
BBA: Born before arrival in hospital
C-section: Caesarean section