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Table 1 Maternal characteristics and obstetric factors for sample and by uterine rupture

From: Predictors of uterine rupture in a large sample of women in Senegal and Mali: cross-sectional analysis of QUARITE trial data

 

Total sample

No uterine rupture

Experienced uterine rupture a, b

N = 84,924 (100%)

N = 84,233 (99.19%)

N = 569 (0.67%)

 

n

%

n

%

n

%

p value

Maternal characteristics

Age

< 20

16,526

19.46

16,458

99.59

45

0.27

< 0.001

20–35

58,998

69.47

58,515

99.18

408

0.69

 

> 35

8551

10.07

8427

98.55

106

1.24

 

Parity c

< 1birth

29,502

34.74

29,418

99.72

55

0.16

< 0.001

2 births

16,264

19.15

16,178

99.47

72

0.44

 

3 or 4 births

20,133

23.71

19,966

99.17

147

0.73

 

> 5 births

18,977

22.35

18,647

98.26

294

1.55

 

Obstetric factors

Mode of delivery

Vaginal

64,993

76.53

64,942

99.92

42

0.06

< 0.001

Cesarean

16,218

19.1

15,736

97.03

477

2.94

 

Instrumental

1775

2.09

1767

99.55

8

0.45

 

Breech

1544

1.82

1539

99.68

4

0.26

 

Other

91

0.11

59

64.84

32

35.16

 

Delivery induced

Yes

2484

2.92

2464

99.19

19

0.77

0.545

No

82,162

96.75

81,598

99.31

546

0.66

 

No. prenatal visits

None

8756

10.31

8592

98.13

135

1.55

< 0.001

1 to 4

65,024

76.57

64,600

99.35

381

0.59

 

> 4

10,470

12.33

10,421

99.53

44

0.42

 

Prior cesarean

Yes

5894

6.94

5771

97.91

121

2.05

< 0.001

No

78,926

92.94

78,395

99.33

447

0.57

 

Comorbidity

Yes

20,384

24.00

20,141

98.81

184

0.90

< 0.001

No

64,502

75.95

64,086

99.36

385

0.60

 

Obstructed labor

Yes

13,822

16.28

13,382

96.82

438

3.17

< 0.001

No

70,978

83.58

70,841

99.81

130

0.18

 

Pre/eclampsia

Yes

2967

3.52

2967

99.20

19

0.64

0.812

No

81,228

96.31

81,228

99.32

550

0.67

 

Hemorrhage

Yes

5220

6.15

4827

92.47

382

7.32

< 0.001

No

79,594

93.72

79,398

99.75

186

0.23

 

> 90% centile of

Yes

9919

11.68

9777

98.57

140

1.41

< 0.001

birth weights

No

74,529

87.76

74,097

99.42

420

0.56

 
  1. aData on Uterine Rupture (yes/no) is missing for 122 women or 0.14% of the sample
  2. bMissing values (of those that experienced uterine rupture): Age(n = 10), Parity (n = 1), No. prenatal visits (n = 9), Prior cesarean delivery (n = 1), Mode of delivery (n = 6), Delivery induced (n = 4), Breech presentation (n = 6), Obstructed labor (n = 1), Pre/eclampsia (n = 5), ≥ 90th centile birth weight [3600 g] (n = 9), Hemorrhage (n = 1)
  3. cParity was categorized as ≤ 1 because there were eight deaths of women prior to delivery among the total sample. Among women who experienced UR, there were no nulliparous women