Table 1 Baseline information for the patients with SCC and SC of ovary in the SEER database, N(%)
Before matching | After matching | |||||
|---|---|---|---|---|---|---|
Serous (n = 15,106) | Squamous (n = 180) | P-value | Serous (n = 200) | Squamous (n = 104) | P-value | |
Age at diagnosis a | 62.0 (54.0–71.0) | 55.5 (46.0–67.8) | < 0.001 | 58.5 (51.0–65.0) | 57.0 (48.0–68.8) | 0.745 |
Tumor size (mm) a | 79.0 (45.0–120.0) | 90.0 (60.0–145.8) | 0.003 | 95.5 (60.0–138.3) | 90.0 (55.0–140.0) | 0.727 |
Year of diagnosis | ||||||
≤2010 | 7094 (47.0) | 107 (59.4) | 0.001 | 108 (54.0) | 57 (54.8) | 0.893 |
> 2010 | 8012 (53.0) | 73 (40.6) | 92 (46.0) | 47 (45.2) | ||
Race | ||||||
White | 12,830 (84.9) | 134 (74.4) | 0.001 | 157 (78.5) | 86 (82.7) | 0.685 |
Black | 1066 (7.1) | 22 (12.2) | 22 (11.0) | 9 (8.7) | ||
Others | 1169 (7.7) | 23 (12.8) | 21 (10.5) | 9 (8.7) | ||
Unknown | 41 (0.3) | 1 (0.6) | – | – | ||
Laterality | ||||||
Unilateral | 8609 (45.1) | 172 (95.6) | < 0.001 | 194 (97.0) | 101 (97.1) | 0.955 |
Bilateral | 8297 (54.9) | 8 (4.4) | 6 (3.0) | 3 (2.9) | ||
FIGO stage | ||||||
I | 1567 (10.4) | 64 (35.6) | < 0.001 | 65 (32.5) | 32 (30.8) | 0.902 |
II | 1348 (8.9) | 39 (21.7) | 46 (23.0) | 30 (28.8) | ||
III | 8092 (53.6) | 44 (24.4) | 60 (30.0) | 26 (25.0) | ||
IV | 4009 (27.1) | 33 (18.3) | 29 (14.5) | 16 (15.4) | ||
Grade b | ||||||
G1/G2 | 1690 (13.5) | 60 (41.1) | < 0.001 | 46 (23.0) | 32 (30.8) | 0.141 |
G3/G4 | 10,837 (86.5) | 86 (58.9) | 154 (77.0) | 72 (69.2) | ||
SEER stage | ||||||
Localized | 833 (5.5) | 47 (26.1) | < 0.001 | 32 (16.0) | 22 (21.2) | 0.448 |
Regional | 2567 (17.0) | 70 (38.9) | 101 (50.5) | 46 (44.2) | ||
Distant | 11,706 (77.5) | 63 (35.0) | 67 (33.5) | 36 (34.6) | ||