Table 2.
Comparison of the PAS and non-PAS group.
| PAS | Non-PAS | p-value | |||
|---|---|---|---|---|---|
| Total patients; n, % | 38,060 | 0.59 | 6,455,546 | 99.41 | |
| Age, years; median [Q1;Q3] | 32 [29;36] | 31 [27;34] | < 0.0001 | ||
| Gestational age [weeks] | |||||
| < 5; n, % | * | * | * | * | |
| 15–13; n, % | * | * | * | * | |
| 14–19; n, % | 74 | 6.03 | 1228 | 94.32 | |
| 20–25; n, % | 770 | 3.24 | 23,743 | 96.86 | |
| 26–33; n, % | 2376 | 1.92 | 123,464 | 98.11 | |
| 34–36; n, % | 3462 | 1.3 | 265,439 | 98.71 | |
| 37–41; n, % | 27,686 | 0.51 | 5,417,061 | 99.49 | |
| > 41; n, % | 3665 | 0.61 | 604,765 | 99.4 | |
| Unspecified; n, % | 31 | 0.52 | 6000 | 99.49 | |
| Birth mode | |||||
| Vaginal delivery; n, % | 10,571 | 27.77 | 4,378,387 | 67.82 | < 0.0001 |
| Caesarean section; n, % | 28,498 | 74.88 | 2,276,208 | 35.26 | < 0.0001 |
| Comorbidities | |||||
| Essential hypertension; n, % | 108 | 0.28 | 11,438 | 0.18 | < .0001 |
| Gestational hypertension; n, % | 541 | 1.42 | 75,802 | 1.17 | < .0001 |
| Diabetes during pregnancy; n, % | 2573 | 6.76 | 396,920 | 6.15 | < .0001 |
| Obesity; n, % | 909 | 2.39 | 160,306 | 2.48 | 0.2355 |
| Grade I; n, % | 199 | 0.52 | 26,505 | 0.41 | 0.0006 |
| Grade II; n, % | 143 | 0.38 | 23,126 | 0.36 | 0.5692 |
| Grade III; n, % | 136 | 0.36 | 26,693 | 0.41 | 0.0886 |
| Anaemia | |||||
| Vitamine B12-, folic acid-, any other dietary anaemia; n, % | 12 | 0.03 | 1204 | 0.02 | 0.0671 |
| Any other form of anaemia; n, % | 17,500 | 45.98 | 757,140 | 11.73 | < 0.0001 |
| Anaemia due to acute bleeding; n, % | 16,741 | 43.99 | 657,061 | 10.18 | < 0.0001 |
| Anaemia during pregnancy; n, % | 22,972 | 60.36 | 1,501,199 | 23.25 | < 0.0001 |
| Anticoagulation therapy; n, % | 94 | 0.25 | 9207 | 0.14 | < 0.0001 |
| Bleeding | |||||
| Prepartum haemorrhage; n, % | 344 | 0.90 | 25,078 | 0.39 | < 0.0001 |
| Intrapartum haemorrhage; n, % | 784 | 2.06 | 27,142 | 0.42 | < 0.0001 |
| Postpartum haemorrhage; n, % | 17,919 | 47.08 | 284,818 | 4.41 | < 0.0001 |
| Blood products | |||||
| RBCs; n, % | 5588 | 14.68 | 46,206 | 0.72 | < 0.0001 |
| Fresh frozen plasma; n, % | 1 447 | 3.80 | 7041 | 0.11 | < 0.0001 |
| Platelets; n, % | 364 | 0.96 | 3203 | 0.05 | < 0.0001 |
| Prothrombin complex concentrate; n, % | 478 | 1.26 | 2742 | 0.04 | < 0.0001 |
| Fibrinogen; n, % | 2271 | 5.97 | 13,216 | 0.20 | < 0.0001 |
| Massive blood transfusion; n, % | 293 | 0.77 | 1137 | 0.02 | < 0.0001 |
| Complications | |||||
| Pneumonia; n, % | 45 | 0.12 | 2417 | 0.04 | < 0.0001 |
| Postpartum renal failure; n, % | 78 | 0.20 | 2665 | 0.04 | < 0.0001 |
| Death; n, % | 14 | 0.04 | 249 | 0.00 | < 0.0001 |
| Miscarriage (child born dead); n, % | 493 | 1.30 | 24,612 | 0.38 | < 0.0001 |
| Length of hospital stay, days; median [Q1;Q3] | 4.21 [3.24;5.8] | 3.53 [3.52;4.68] | < 0.0001 | ||
| Cardiopulmonary resuscitation; n, % | 40 | 0.11 | 605 | 0.01 | < 0.0001 |
PAS Placenta accreta spectrum, RBC Red blood cell.
*Censored ≤ 3 patients.
All variables are expressed as n (%) or Median [Q1;Q3].