Table 3. Five-year disease-specific survival based on the extent of lymphadenectomy and clinicopathologic characteristics.

	No.	Total % (s.e.)	0 nodes % (s.e.)	1 node % (s.e.)	2–5 nodes % (s.e.)	6–10 nodes % (s.e.)	11–20 nodes % (s.e.)	>20 nodes % (s.e.)	Log-rank
Stage of disease									P<0.001
Stage III–IV	13 918	31.1 (0.5)	26.1 (0.5)	35.2 (2.0)	42.6 (1.8)	48.4 (2.4)	47.5 (2.3)	47.8 (2.8)	P<0.001
Stage III	8062	36.7 (0.7)	30.5 (0.8)	37.4 (2.7)	47.7 (2.2)	55.2 (2.9)	51.6 (2.8)	54.5 (3.2)	P<0.001
Stage IIIA	448	48.0 (2.8)	40.4 (3.3)	33.9 (12.6)	66.8 (8.4)	61.5 (10.5)	71.4 (9.6)	74.7 (17.5)	P<0.001
Stage IIIB	672	42.1 (2.4)	35.1 (2.7)	41.0 (12.9)	55.9 (8.0)	74.0 (7.6)	61.0 (8.8)	81.1 (10.1)	P=0.001
Stage IIIC	4576	36.7 (0.9)	29.0 (1.2)	36.9 (3.1)	45.0 (2.6)	47.8 (3.6)	48.7 (3.3)	51.1 (3.5)	P<0.001
Stage IV	5856	24.1 (0.7)	21.4 (0.7)	31.3 (3.1)	33.1 (2.9)	34.6 (4.0)	38.3 (4.1)	32.2 (5.0)	P<0.001
Grade of disease									P<0.001
Grade 1	580	56.9 (2.4)	49.3 (3.0)	44.5 (11.2)	67.3 (7.7)	71.9 (7.8)	75.2 (7.8)	77.3 (7.6)	P<0.001
Grade 2	2443	33.4 (1.2)	28.0 (1.3)	37.3 (5.6)	45.0 (4.3)	59.1 (5.6)	49.4 (5.1)	48.3 (6.1)	P<0.001
Grade 3	8349	29.2 (0.6)	24.2 (0.7)	32.6 (2.5)	40.4 (2.3)	44.6 (3.1)	43.5 (2.9)	46.4 (3.6)	P<0.001
Histology									P<0.001
Serous	9294	30.6 (0.6)	26.1 (0.7)	32.2 (2.5)	41.6 (2.2)	49.7 (3.0)	45.6 (2.9)	44.0 (3.5)	P<0.001
Endometrioid	1275	43.6 (1.6)	35.5 (2.0)	53.1 (6.4)	49.8 (5.0)	50.7 (6.7)	63.0 (5.9)	75.4 (5.6)	P<0.001
Mucinous	775	33.3 (2.0)	28.1 (2.2)	41.6 (8.5)	48.7 (8.1)	46.1 (10.1)	51.3 (9.6)	47.0 (9.7)	P<0.001
Clear cell	394	25.5 (2.9)	18.3 (3.6)	10.1 (9.1)	38.0 (7.0)	39.9 (10.4)	34.4 (9.4)	37.6 (10.3)	P=0.007

s.e.=standard error.