Table 1 Univariate analysis of risk factors for SUI after laparoscopic hysterectomy

Age (years)

 ≥ 50

8

20

 < 50

20

49

Primary disease type

myoma of uterus

13

25

adenomyosis

8

20

endometrioma

2

7

abnormal uterine bleeding

2

7

Cervical epithelial neoplasia

2

6

atypical hyperplasia of endometrium

1

4

Family history of SUI

yes

2

5

no

26

64

Parity (times)

 ≥ 2

17

56

Newborn birth weight ≥ 4000 g

yes

22

40

no

6

29

Menstrual cycle

regularity

15

38

irregularity

13

31

BMI index

 ≥ 28 kg/ m²

20

36

 < 28 kg/ m²

8

33

History of chronic cough

yes

23

39

no

5

30

no

10

48

Pausimenia

yes

24

34

no

4

35

Preoperative uterine volume(cm³)

 ≥ 90

22

38

 < 90

6

31

Preoperative hemoglobin(g/L)

 ≥ 100

19

37

 < 100

9

32

Preoperative albumin(g/L)

 ≥ 35

11

40

 < 35

17

29

Preoperative blood white blood cell count(*10⁹/L)

 > 9.5

15

38

 ≤ 9.5

13

31

Preoperative urinary white blood cell count(/uL)

 > 28

16

35

Preoperative urinary bacterial count(/uL)

 > 7

25

42

 ≤ 7

3

27

Intraoperative blood loss(ml)

 ≥ 100

23

43

 < 100

5

26

Time of operation(h)

 ≥ 2

18

39

 < 2

10

30

Postoperative catheter retention time

 ≥ 72 h

16

36

 < 72 h

12

33

Postoperative urine erythrocyte count

 ≥ 30U/L

17

34

 < 30U/L

11

35

Hematuria

 ≥ 2 + 

15

37

 < 2 + 

13

32