Table 3. Correlation of BubR1 level and clinicopathological parameters.

		BubR1 expression
	Number of patients	Negative	Positive	P-value
Age
<55 years	97	28	69	0.016
⩾55 years	63	11	52
FIGO stage
Early (I, II)	56	26	30	0.001
Advanced (III, IV)	104	13	91
Histology
Serous	92	13	79	0.008
Non-serous	68	26	42
Grade
1	27	16	11	0.001
2 and 3	133	23	110
Residual tumour
⩽1 cm	83	32	51	0.021
>1 cm	77	7	70