Table 1.

Correlation of CBX members mRNA expression level with OS and PFS in different histological subtypes of ovarian cancer patients

CBX	Histologic subtypes	OS			PFS
		Cases	HR (95% CI)	P value	Cases	HR (95% CI)	P value
CBX1	serous	1207	1.44 (1.20 - 1.73)	0.0001*	1104	1.19 (1.01 - 1.39)	0.0341*
	endometrioid	37	4.41 (0.49 - 39.52)	0.1465	51	0.47 (0.19 - 1.20)	0.1081
CBX2	serous	523	1.47 (1.11 - 1.95)	0.0066*	483	1.51 (1.18 - 1.93)	0.0010*
	endometrioid	30	3.40×108 (0 - Inf)	0.1665	44	0.26 (0.08 - 0.83)	0.0149*
CBX3	serous	1207	1.25 (1.04 - 1.50)	0.0179*	1104	0.84 (0.72 - 0.98)	0.0268*
	endometrioid	37	0.35 (0.06 - 2.09)	0.2278	51	0.54 (0.21 - 1.36)	0.1817

*P <0.05.