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Table 1 Baseline clinical features difference between PPSC and ASOC patients

From: Differences between primary peritoneal serous carcinoma and advanced serous ovarian carcinoma: a study based on the SEER database

Clinical features PPSC N = 708(%) ASOC N = 7610(%) Total N = 8318(%) P value
Age <  0.001
  ≤ 49 41 (5.8) 1447 (19.0) 1488 (17.9)  
 50–69 387 (54.7) 4363 (57.3) 4750 (57.1)  
  ≥ 70 280 (39.5) 2100 (27.6) 2380 (28.6)  
Race 0.003
 White 600 (84.7) 6393 (84.0) 8365 (84.1)  
 Black 31 (4.4) 560 (7.4) 693 (7.0)  
 Others 77 (10.9) 657 (8.6) 886 (8.9)  
Marital status 0.740
 Married 398 (56.2) 4164 (54.7) 4562 (54.8)  
 Not married 283 (40.0) 3153 (41.4) 3436 (41.3)  
 Unknown 27 (3.8) 293 (3.9) 391 (3.8)  
Tumor grade 0.003
 I 18 (2.5) 179 (2.4) 197 (2.4)  
 II 88 (12.4) 634 (8.3) 722 (8.7)  
 III 318 (44.9) 3539 (46.5) 3857 (46.4)  
 IV 284 (40.1) 3258 (42.8) 3542 (42.6)  
AJCC stage 0.105
 III 466 (65.8) 5234 (68.8) 5700 (68.5)  
 IV 242 (34.2) 2376 (31.2) 2618 (31.5)  
Chemotherapy 0.605
 Yes 626 (88.4) 6678 (87.8) 7304 (87.8)  
 No/Unknown 82 (11.6) 932 (12.2) 1014 (12.2)  
Surgery <  0.001
 Yes 649 (91.7) 7215 (94.8) 7864 (94.5)  
 No/Unknown 59 (8.3) 395 (5.2) 454 (5.5)  
  1. PPSC primary peritoneal serous carcinoma, ASOC advanced serous ovarian cancer, AJCC American Joint Committee on Cancer