Table 2 Distribution of pre-pregnancy variables and differences associated with peripartum blood transfusion in women undergoing NHSE within one year before conception
From: Predicting peripartum blood transfusion: focusing on pre-pregnancy characteristics
| No Transfusion 436,668 (98.21%) | Transfusion 7960 (1.79%) | p-value | |
|---|---|---|---|
| Waist circumference (cm) ≥ 80 | 47,317 (10.80%) | 838 (10.49%) | 0.3695 |
| Body mass index (kg/m2) | 21.05 ± 2.87 | 21.09 ± 2.93 | 0.2 |
| Body mass index (kg/m2) ≥ 25 | 39,454 (9.00%) | 750 (9.38%) | 0.2428 |
| Systolic blood pressure (mmHg) | 110.1 ± 10.84 | 110.5 ± 11.24 | < 0.001 |
| Diastolic blood pressure (mmHg) | 69.19 ± 8.12 | 69.55 ± 8.35 | < 0.001 |
| Blood pressure ≥ 130/85 (mmHg) | 30,349 (6.92%) | 664 (8.30%) | < 0.001 |
| Hemoglobin | 12.93 ± 1.01 | 12.70 ± 1.19 | < 0.001 |
| Fasting glucose (mg/dL) | 87.81 ± 11.36 | 88.58 ± 12.54 | < 0.001 |
| Fasting glucose ≥126 | 42,380 (9.67%) | 900 (11.26%) | < 0.001 |
| Total cholesterol (mg/dL) | 176.9 ± 31.55 | 177.2 ± 36.46 | 0.4163 |
| Total cholesterol (mg/dL) ≥ 200 | 87,585 (19.98%) | 1646 (20.59%) | 0.1772 |
| AST (IU/L) | 19.24 ± 12.77 | 19.48 ± 11.03 | < 0.05 |
| AST (IU/L) ≥ 30 | 18,724 (4.27%) | 385 (4.81%) | < 0.05 |
| ALT (IU/L) | 15.38 ± 16.83 | 15.70 ± 16.73 | 0.087 |
| ALT (IU/L) ≥ 30 | 21,314 (4.86%) | 444 (5.55%) | < 0.01 |
| Smoking | |||
| Never | 407,408 (93.21%) | 7403 (92.89%) | < 0.05 |
| Ever | 15,480 (3.54%) | 264 (3.31%) | |
| Current | 14,190 (3.25%) | 303 (3.80%) | |