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Table 2 Chi-square analysis of surgical pathological features and recurrence of the patients [n(%)]

From: Recurrence characteristics and clinicopathological results of borderline ovarian tumors

Factor N (%) Recurrence χ2 P
FIGO stage      
 Stage I 268 (93.7) 36 232 20.281  < 0.001
 Stage II 6 (2.1) 2 4   
 Stage III 12 (4.2) 2 10   
Micro papilla      
 Yes 40 (14.0) 10 30 4.689 0.046
 No 246 (86.0) 30 216   
Microinvasion      
 Yes 19 (6.6) 6 13 5.236 0.034
 No 267 (93.4) 34 233   
Focal cancerous      
 Yes 58 (21.3) 4 54 2.116 0.182
 No 228 (78.7) 30 198   
Calcified sand bodies      
Yes 22 (7.7) 8 14 15.274 0.01
No 264 (2.3) 22 244   
Surgical approach      
 Laparotomy 180 28 152 0.403 0.585
 Laparoscope 106 12 94   
The operation type      
 Conservative operation 178 (61.7) 38 140 16.894 < 0.001
 Whether the affected appendage should be excised 83 (28.7) 15 68   0.212 (exact probability)
Resection of lymph      
 Whether or not the affected side of the ovarian cyst stripping 71 (25.2) 15 56 2.971 0.085
Radical operation 108 (38.3) 2 106   
Yes 40 2 38   
No 245 37 208   
  286     
Serous 126 (44.1) 16 110 3.711 0.262
Histological type      
Mucinous tumors 138 (48.3) 20 118   
Plasma mucinous tumors 12 (4.2) 4 8   
Endometriosis 4 (1.4) 0 4   
Brenner 2 (0.7) 0 0   
Clear cell tumor 4 (1.4) 0 0