Table 1

- Comparison of demographic characteristics and serum CA-125 levels among the 4 study groups.

Group	Gender (n)		Age (x±s)	CA-125 [Median (P₂₅, P₇₅)]	Abnormal rate of CA-125 (%)
Group	Male	Female	Age (x±s)	CA-125 [Median (P₂₅, P₇₅)]	Abnormal rate of CA-125 (%)
Group 1	101	56	76.8±10.5	42.5 (21.0, 86.2)	57.3
Group 2	204	105	69.1±8.2	34.4 (14.0, 105.4)	49.5
Group 3	234	181	77.4±10.1	21.1 (12.7, 40.5)	29.2
Group 4	445	275	69.0±8.1	8.6 (1.2, 12.1)	0.4
Total test statistic	7.806		104.106	735.183	444.372
Total p-value	0.05		<0.001	<0.001	<0.001
Group 1 versus group 2	χ²=0.131, p=0.717		t=7.670, p p <0.001	H=101.997, p=0.146	χ²=2.545, p=0.111
Group 1 versus group 3	χ²=2.964, p=0.085		t=0.625, p=0.454	H=223.156, p<0.001	χ²=38.822, p<0.001
Group 1 versus group 4	χ²=0.350, p=0.554		t=7.778, p<0.001	H=757.531, p<0.001	χ²=440.334, p<0.001
Group 2 versus group 3	χ²=6.879, p=0.009		t=8.295, p<0.001	H=121.160, p=0.003	χ²=31.207, p<0.001
Group 2 versus group 4	χ²=1.648, p=0.199		t=0.109, p=0.858	H=655.535, p<0.001	χ²=405.222, p<0.001
Group 3 versus group 4	χ²=3.218, p=0.073		t=8.403, p<0.001	H=534.375, p<0.001	χ²=223.448, p<0.001

P₂₅, the 25th percentile; P₇₅, the 75th percentile.