Table 5.
Related factors analysis for pre-BBT blood loss ≥1000 mL by logistic regression
| Variables | β | S.E. | Wald | df | P value | OR | 95% CI | |
|---|---|---|---|---|---|---|---|---|
|
| ||||||||
| Lower | Upper | |||||||
| Maternal age | 3.09 | 2 | 0.214 | |||||
| 25-35 year | 0.38 | 0.44 | 0.78 | 1 | 0.378 | 1.470 | 0.625 | 3.457 |
| ≥35 year | 1.03 | 0.60 | 2.92 | 1 | 0.088 | 2.802 | 0.859 | 9.139 |
| Weight | 0.03 | 0.02 | 3.36 | 1 | 0.067 | 1.028 | 0.998 | 1.060 |
| Gestational age | 0.03 | 0.08 | 0.12 | 1 | 0.727 | 1.030 | 0.872 | 1.216 |
| Parity | -0.16 | 0.34 | 0.23 | 1 | 0.632 | 0.848 | 0.432 | 1.664 |
| Delivery mode | -1.15 | 0.37 | 9.77 | 1 | 0.002 | 0.318 | 0.155 | 0.652 |
| Birth number | 0.31 | 0.69 | 0.20 | 1 | 0.651 | 1.366 | 0.353 | 5.275 |
| Repeat cesarean section | -0.29 | 0.73 | 0.16 | 1 | 0.687 | 0.746 | 0.180 | 3.101 |
| Gestational Diabetes | -2.50 | 1.50 | 2.79 | 1 | 0.095 | 0.082 | 0.004 | 1.541 |
| Gestational hypertension | -0.13 | 0.82 | 0.02 | 1 | 0.876 | 0.880 | 0.177 | 4.386 |
| Uterine atony | 0.79 | 0.37 | 4.57 | 1 | 0.033 | 2.211 | 1.068 | 4.578 |
| Placenta accreta | -0.02 | 0.33 | 0.00 | 1 | 0.947 | 0.978 | 0.513 | 1.866 |
| Abnormal coagulation | -1.74 | 1.01 | 2.96 | 1 | 0.085 | 0.175 | 0.024 | 1.275 |
| Lower genital tract trauma | -0.50 | 0.52 | 0.91 | 1 | 0.339 | 0.605 | 0.216 | 1.694 |
| Placenta previa | -0.74 | 0.94 | 0.63 | 1 | 0.428 | 0.475 | 0.076 | 2.989 |
| Preeclampsia | -0.27 | 0.83 | 0.11 | 1 | 0.746 | 0.765 | 0.151 | 3.874 |
| Suture before using BBT | 11.70 | 3 | 0.008 | |||||
| UAE | 0.41 | 0.63 | 0.43 | 1 | 0.513 | 1.513 | 0.438 | 5.226 |
| “8” suture | 0.03 | 0.61 | 0.00 | 1 | 0.958 | 1.033 | 0.314 | 3.402 |
| Other | 2.58 | 0.78 | 11.03 | 1 | 0.001 | 13.162 | 2.876 | 60.241 |
| Constant | -3.01 | 3.66 | 0.68 | 1 | 0.410 | 0.049 | ||
BBT, Bakri balloon tamponade; UAE, uterine artery embolization.