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Table 1 Characteristics of patients with primary POFT cancer

From: Second primary cancer after primary peritoneal, epithelial ovarian, and fallopian tubal cancer: a retrospective study

Variable Number Percent
Women with POFT cancer 20,738 100.00
 Peritoneal cancer 506 2.44
 Epithelial ovarian cancer 19,767 95.32
 Fallopian tubal cancer 465 2.24
Average follow-up, years (mean, SD) 5.68 5.33
Average age at diagnosis of POFT cancer, years (mean, SD) 51.18 13.37
Age at diagnosis of the 1st primary cancer, years
  < 30 1346 6.49
 30–39 2394 11.54
 40–49 5520 26.62
 50–59 5885 28.38
 60–69 3763 18.15
 70–79 1597 7.70
  ≥ 80 233 1.12
Histology
 Serous 11,793 56.87
 Mucinous 4332 20.89
 Endometrioid 2304 11.11
 Clear cell 1929 9.30
 Others 380 1.84
Stage*
 Localized 3378 28.70
 Regional 2365 20.09
 Distant 5416 46.01
 Unknown 612 5.20
Women who developed SPC 798 3.84
Average interval between first POFT cancer and SPC, years (mean, SD) 5.50 4.71
Average age at diagnosis of SPC, years (mean, SD) 56.00 11.88
  1. *Stage data was used since 2006
  2. POFT: peritoneal, epithelial ovarian, and fallopian tubal; SPC: second primary cancer; SD, standard deviation