Table 1 The preoperative clinical characteristics of ULSM group and control group

Age, yrs

47.0 ± 9.7

41.2 ± 7.7

<0.001

Postmenopausal

9 (20.0)

9 (5.0)

0.003

Gravidity

2.2 ± 1.9

1.9 ± 1.4

0.169

Parity

1.1 ± 0.6

0.8 ± 0.6

0.008

BMI, kg/m²

23.0 ± 2.9

22.8 ± 3.5

0.801

Manifestations

27 (60.0)

106 (58.9)

0.892

 Abnormal uterine bleeding

20 (44.4)

85 (47.2)

0.738

 Compression symptoms

4 (8.9)

23 (12.8)

0.612

Overall uterine size, cm

9.6 ± 2.6

8.0 ± 2.4

0.009

Myoma size, cm

7.8 ± 2.3

6.2 ± 2.5

<0.001

 ≥8 cm

24

32

<0.001

Solitary presumed myoma

19

72

0.786

CA125, IU/L, in 140 cases

30.0 ± 39.6

23.9 ± 17.6

0.218

CA199, IU/L, in 72 cases

9.8 ± 8.9

20.2 ± 31.0

0.136

Neutrophil, × 10⁹/L

5.4 ± 3.2

3.5 ± 1.2

<0.001

Lymphocyte, × 10⁹/L

1.8 ± 0.6

2.5 ± 1.2

0.669

NLR

3.3 ± 2.5

2.3 ± 1.1

0.007

HCT, %

37.0 ± 5.3

37.6 ± 3.8

0.446

Platelet, ×10⁹/L

323.4 ± 112.2

272.1 ± 71.4

0.005

LDH, U/L

212.3 ± 57.2

169.1 ± 27.0

<0.001

Initial surgery

<0.001

 Total hysterectomy

33

57

 Myomectomy

12

123