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Table 1 Clinical and morphological characteristics of EOC patients with or without EM

From: Endometriosis is the independent prognostic factor for survival in Chinese patients with epithelial ovarian carcinoma

  NON-EAOC EAOC P
Numbers 236 68  
Age(year)(median[IQR]) 52.0 [44.00,62.00] 45.00 [40.00,49.50] <0.001a
 Menopause    <.0001a
  Pre- 108 (45.96%) 53 (76.81%)  
  Post- 127 (54.04%) 16 (23.19%)  
 Gravid    0.6506
  0 26 (11.06%) 9 (13.04%)  
   > =1 209 (88.94%) 60 (86.96%)  
 Parity    0.5637
  0 41 (17.45%) 10 (14.49%)  
   > =1 194 (82.55%) 59 (85.51%)  
 Symptoms    
  Abdominal pain    0.3989
  Yes 76 (32.34%) 17 (24.64%)  
  No 158 (67.23%) 52 (75.36%)  
 Bloating    0.0193a
  Yes 54 (22.98%) 7 (10.14%)  
  No 181 (77.02%) 62 (89.86%)  
 Palpable mass    0.2629
  Yes 59 (25.11%) 22 (31.88%)  
  No 176 (74.89%) 47 (68.12%)  
 Incidental finding    0.1232
  Yes 33 (14.04%) 15 (21.74%)  
  No 202 (85.96%) 54 (78.26%)  
 Irregular menstruation    0.1111
  Yes 19 (8.09%) 10 (14.49%)  
  No 216 (91.91%) 59 (85.51%)  
 Postmenopausal bleeding    0.0610
  Yes 18 (7.66%) 1 (1.45%)  
  No 217 (92.34%) 68 (98.55%)  
 Cachexia    0.0814
  Yes 10 (4.26%) 0 (0%)  
  No 225 (95.74%) 69 (100%)  
 Abnormal vaginal discharge    0.4420
  Yes 2 (0.85%) 0 (0%)  
  No 233 (99.15%) 69 (100%)  
Pre-surgery Ca125 (IU/ml) (median[IQR]) 256.20 [62.96, 959.30] 89.50 [37.80, 346.85] <0.001a
 Ca125 in normal range    0.2110
  Yes 39 (16.6%) 16 (23.19%)  
  No 196 (83.4%) 53 (76.81%)  
Tumor size (cm) (median[IQR]) 9.00 [6.00,13.00] 10.00 [7.00,15.000] 0.245
 Side of ovarian tumor    0.3904
  Unilateral 161 (68.51%) 51 (73.91%)  
  Bilateral 74 (31.49%) 18 (26.09%)  
 Breast cancer history    0.1204
  Yes 8 (3.4%) 0 (0%)  
  No 227 (96.6%) 69 (100%)  
 HT history    0.2433
  Yes 45 (19.15%) 9 (13.04%)  
  No 190 (80.85%) 60 (86.96%)  
 DM history    0.2263
  Yes 16 (6.81%) 2 (2.9%)  
  No 219 (93.19%) 67 (97.1%)  
 Hysterectomy history    0.1469
  Yes 7 (2.98%) 0 (0%)  
  No 228 (97.02%) 69 (100%)  
 Tube ligation history    0.0379a
  Yes 14 (5.96%) 0 (0%)  
  No 221 (94.04%) 69 (100%)  
  1. Abbreviation: EOC, epithelial ovarian carcinoma; EM, endometriosis; EAOC, endometriosis-associated ovarian cancer; IQR, InterQuartile Range; Ca125, cancer antigen 125; HT, hypertension; DM, diabetic mellitus;
  2. athe difference reached statistical significance