Table 1 Demographics of patients with borderline ovarian tumors

Total

330

118

Age (y, mean ± Std)

36.75 ± 14.35

38.03 ± 12.49

0.363

Time of operation(h, mean)

127.50

255.00

< 0.001

Blood Loss (ml, median)

80

400

< 0.001

Length of stay (d, median)

6

8

< 0.001

 I

287 (87%)

60 (50.8%)

< 0.001

 II

8 (2.40%)

12 (10.2%)

 III

32 (9.7%)

42 (35.6%)

 IV

3 (0.9%)

4 (3.4%)

Histology

0.038

 Serous

177 (53.6%)

81 (68.6%)

 Mucinous

119 (36.1%)

31 (26.3%)

 Endometrioid

7 (2.1%)

1 (0.8%)

 Serous and Mucinous

27 (8.2%)

5 (4.2%)

Lesion lateral

< 0.001

 Unilateral

277 (83.9%)

75 (63.6%)

 Bilateral

53 (16.1%)

43 (36.4%)

 Yes

45 (13.6%)

36 (30.5%)

< 0.001

 No

285 (86.4%)

82 (69.5%)

Microinvasion

< 0.001

 Yes

31 (9.4%)

57 (48.3%)

 No

299 (90.6%)

61 (51.7%)

 Yes

14 (4.2%)

11 (9.3%)

0.058

 No

316 (95.8%)

107 (90.7%)

Surgical Approach

< 0.001

 Laparotomy

192 (58.2%)

106 (89.8%)

 Laparoscopy

138 (41.8%)

12 (10.2%)

Ascites/Cytologic washings

0.012

 Positive

14 (4.2%)

13 (11.0%)

 Negative

316 (95.8%)

105 (89.0%)

Lymph node involvement

NA

 Yes

NA

21 (18.6%)

 No

NA

92 (81.4%)

 Yes

6 (54.5%)

5 (45.5%)

0.05

 No

113 (81.3%)

26 (18.7%)

Omentum metastasis

NA

 Yes

NA

27 (23.1%)

 No

NA

90 (76.9%)

Adjuvant chemotherapy

< 0.001

 Yes

54 (16.4%)

67 (56.8%)

 No

276 (83.6%)

51 (43.2%)

Recurrence

0.007

 Yes

30 (9.1%)

22 (18.6%)

 No

300 (90.9%)

96 (81.4%)

Fertility-sparing surgery

< 0.001

 Yes

240 (72.7%)

30 (25.4%)

 No

90 (27.3%)

88 (74.6%)

Achieving pregnancy

0.552

 Yes

79 (35.7%)

13 (41.9%)

 No

142 (64.3%)

18 (58.1%)