The expression of aldehyde dehydrogenase 1 (ALDH1) in ovarian carcinomas and its clinicopathological associations: a retrospective study

Table 4 Multivariate analysis of overall survival in a total of 232 valid ovarian carcinoma patients

Factors	HR^a	95 % CI^b	p-value
ALDH1 tumor^c	0.913	0.735–1.134	0.412
ALDH1 stromal^c	1.008	0.764–1.331	0.913
Age group^d	1.193	1.048–1.357	0.007
Differentiation grade^e	1.377	1.075–1.763	0.011
FIGO stage^f	1.676	1.356–2.071	<0.001
Histological subtype^g	0.966	0.879–1.062	0.472

^aHR Hazard ratio; ^b95 % CI, 95 % confidence interval; ^cALDH1 expression including negative group, low expression group and high expression group; ^dAge ≤ 39 years versus 40–49 years versus 50–59 years versus 60–69 years versus ≥70 years; ^ewell differentiation versus moderate differentiation versus poor differentiation; ^fFIGO stage I versus FIGO stage II versus FIGO stage III versus FIGO stage IV; ^gSerous carcinoma versus mucinous carcinoma versus endometrioid carcinoma versus clear cell carcinoma versus mixed epithelial tumor versus undifferenciated tumor

ISSN: 1471-2407