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Table 1 Characteristics of patients who underwent USO or cystectomy for unilateral ovarian endometrioma

From: Contralateral ovarian endometrioma recurrence after unilateral salpingo-oophorectomy

  USO cystectomy P value
N 50 60  
Age at the time of operation 41.4 ± 2.3 (36–44) 38.2 ± 2.4 (35–43) P < 0.0001
Gravity 0.86 ± 0.94 (0–3) 0.22 ± 0.53 (0–3) P < 0.0001
Parity 0.67 ± 0.80 (0–3) 0.17 ± 0.46 (0–2) P < 0.0001
Right endometrioma 25 (50.0%) 30 (50.0%)  
Left endometrioma 25 (50.0%) 30 (50.0%) NS
Diameter of largest cyst (cm) 5.64 ± 1.91 (2–10) 5.26 ± 2.65 (1–15) NS
Multilocular cyst 9 (18.0%) 9 (15.0%) NS
Leiomyoma 22 (44.0%) 25 (41.7%) NS
Adenomyosis 8 (16.0%) 9 (15.0%) NS
Dysmenorhea 29 (59.2%) 24 (40.0%) NS
Infertility 4 (8.5%) 19 (31.7%) P = 0.0042
Concurrent hysterectomy 2 (4.0%) 0 (0.0%) NS
reASRMscore 55.5 ± 28.5 (21–126) 43.8 ± 27.6 (16–124) P = 0.0321
Adhesion score in the ipsilateral side 11.5 ± 7.9 (0–32) 8.4 ± 8.2 (0–32) P = 0.0476
Adhesion score in the contralateral side 5.1 ± 8.3 (0–32) 3.8 ± 7.9 (0–32) NS
Adhesion score in the ipsilateral side ≥4 45 (90.0%) 48 (80.0%) NS
Adhesion score in the ipsilateral side ≥16 21 (42.0%) 13 (27.7%) P = 0.0245
Adhesion score in the contralateral side ≥4 21 (42.0%) 16 (26.7%) NS
Adhesion score in the contralateral side ≥16 5 (10.0%) 7 (11.7%) NS
Pouch of Douglas obliteration 33 (66.0%) 27 (45.0%) P = 0.0349
Postoperative follow-up period(month) 46.0 ± 12.9 (15–73) 38.8 ± 22.0 (4–75) P = 0.0425
Postoperative hormonal therapy 10 (20.0%) 24 (41.7%) P = 0.0375
 Oral contraceptives 3 (6.0%) 16 (26.7%)  
 Dienogest 7 (14.0%) 8 (13.3%)  
Postoperative fertility treatment 2 (4.0%) 18 (42.9%) P = 0.0004
Postoperative pregnancy 0 (0.0%) 8 (13.3%) P = 0.0076
Postoperative parturition 0 (0.0%) 7 (11.7%) P = 0.0165
Postoperative recurrence 8 (16.0%) 7 (11.7%) NS
Time to recurrence (month) 22.3 ± 19.7 (2–54) 17.7 ± 15.6 (2–45) NS