Table 1.

Clinicopathological characteristics of type I and type II ovarian cancer

	All patients		Type I		Type II
	n	Percent	n	Percent	n	Percent
Total	11,275	NA	3522	31.2%	7753	68.8%
Age (year)
< 50	3174	28.2%	1376	39.1%	1798	23.2%
≥ 50	8101	71.8%	2146	60.9%	5955	76.8%
Tumor Stage
Stage T1	4360	38.7%	2397	68.1%	1963	25.3%
Stage T2	1727	15.3%	441	12.5%	1286	16.6%
Stage T3	4658	41.3%	606	17.2%	4052	52.3%
Stage TxM1	482	4.3%	60	1.7%	422	5.4%
Unknown	48	0.4%	18	0.5%	30	0.4%
Tumor size
≤ 5 cm	1795	15.9%	535	15.2%	1260	16.2%
5-10 cm	2553	22.6%	662	18.8%	1891	24.4%
10-15 cm	2200	19.5%	736	20.9%	1464	18.9%
15-20 cm	1034	9.2%	452	12.8%	582	7.5%
> 20 cm	628	5.6%	367	10.4%	261	3.4%
Unknown	3065	27.2%	770	21.9%	2295	29.6%