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. 2021 Apr 1;113(2):102–114. doi: 10.32074/1591-951X-217

Table II.

The seven histopathologic subtypes of epithelial ovarian carcinoma defined by stage, recurrence status, mortality and survival.

Criteria Histopathologic types (n, %) Test of significance
Low-grade serous carcinoma High-grade serous carcinoma Mucinous carcinoma Endometrioid carcinoma Clear cell carcinoma Malignant Brenner tumor Mixed carcinoma
FIGO stage (n, %)
I&II 12 (57.1) 18 (33.3) 8 (53.3) 2(100) 1(50) 1(50) 0 (0) c2 = 8.7
p = 0.193
III & IV 9 (42.9) 36 (66.7) 7 (46.7) 0 (0) 1(50) 1(50) 2(100)
Recurrence (n/%)
No 13 (61.9) 22 (40.7) 11 (73.3) 2(100) 1(50) 1(50) 0 (0) c2 = 15.6
p = 0.016*
Yes 8 (38.1) 32 (59.3) 4 (26.7) 0 (0) 1(50) 1(50) 2(100)
Mortality (n/%)
Survived 16 (76.2) 18 (33.3) 12 (80.0) 1(50) 1(50) 2(100) 1(50) c2 = 19.03
p = 0.004*
Died 5 (23.8) 36 (66.7) 3 (20.0) 1(50) 1(50) 0 (0) 1(50)
OS
Median (95%CI)
46 (38-54) 39 (33-45) 40.5 (30-51) 4 (4-4) 5 (5-5) 61 (61-61) 26 (26-26) Log rank = 81.6
p ≤ 0.001*
DFS
Median (95%CI)
44.7 (37-52) 28 (22.9-33.4) 30 (23-37) 4 (4-4) 5 (5-5) 26 (26-26) 6 (6-6) Log rank = 95
p ≤ 0.001*

OS, overall survival; DFS, disease-free survival; c2 chi-square test; CI, confidence interval; p value is significant if ≤ 0.05.