Skip to main content

Table 1 Distribution of peripartum variables and differences associated with peripartum blood transfusion

From: Predicting peripartum blood transfusion: focusing on pre-pregnancy characteristics

 No transfusion
1,943,258 (98.14%)
Transfusion
36,868 (1.86%)
p-value
Maternal age (years) mean ± SD31.16 ± 3.8632.14 ± 4.26<  0.001
Maternal age ≥ 35 years, N (%)349,119 (17.97%)10,177 (27.60%)<  0.001
Multifetal pregnancy, N (%)27,331 (1.41%)2761 (7.49%)<  0.001
Nulliparity, N (%)927,079 (47.74%)15,968 (43.31%)<  0.001
Cesarean delivery, N (%)713,992 (36.74%)21,388 (58.01%)<  0.001
Gestational age at births < 37 weeks, N (%)56,826 (2.92%)5243 (14.22%)<  0.001
Neonatal weight (kg) mean ± SD3.19 ± 0.473.03 ± 0.67<  0.001
 2.5–4.0 kg, N (%)1,793,764 (92.31%)29,503 (80.02%)<  0.001
 < 2.5 kg, N (%)80,842 (4.16%)5743 (15.58%) 
 ≥ 4.0 kg, N (%)68,652 (3.53%)1622 (4.40%) 
Neonatal sex (male), N (%)996,211 (51.26%)18,111 (49.12%)<  0.001
Hypertension, N (%)35,335 (1.82%)2561 (6.95%)<  0.001
Postpartum hemorrhage, N (%)150,259 (7.73%)16,072 (43.59%)<  0.001
Placental abruption, N (%)5925 (0.30%)1033 (2.80%)<  0.001
Placenta previa, N (%)17,391 (0.89%)5479 (14.86%)<  0.001
Embolization, N (%)151 (0.01%)2450 (6.65%)<  0.001
Hysterectomy, N (%)229 (0.01%)1569 (4.26%)<  0.001