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Table 2 Univariate and multivariate analysis of DFS

From: Staging procedures fail to benefit women with borderline ovarian tumours who want to preserve fertility: a retrospective analysis of 448 cases

  Univariate P value Multivariate P value
HR 95% confidence interval HR 95% confidence interval
FIGO Stage
 I 1      
II 7.204 4.093–12.680 0.000 6.544 2.137–20.041 0.001
Histology
 Serous 1      0.528
 Mucinous 0.353 0.171–0.726 0.005 1.215 0.275–5.375 0.797
 Others 0.286 0.069–1.183 0.084 0.632 0.130–3.066 0.569
Lesion lateral
 Unilateral 1      
 Bilateral 2.554 1.460–4.469 0.001 1.076 0.526–2.202 0.840
Micropapillary
 Yes 1.557 0.831–2.917 0.167    
 No 1      
Microinvasion
 Yes 5.092 2.954–8.779 0.000 0.478 0.181–1.261 0.136
 No 1      
Carcinogenesis
 Yes 1.049 0.327–3.366 0.936    NA
 No 1      
Staging surgery
 Yes 2.191 1.263–3.801 0.005 0.810 0.393–1.669 0.567
 No 1      
Adjuvant chemotherapy
 Yes 5.281 3.002–9.289 0.000 2.031 0.913–4.519 0.083
 No 1      
Ascites/Pelvic washings
 Positive 5.442 2.850–10.391 0.000 3.259 1.202–8.835 0.020
 Negative 1      
Surgical Approach
 Laparotomy 1      
 Laparoscopy 0.292 0.132–0.647 0.002 0.319 0.128–0.793 0.014
CA-125
 Normal 1      
 Elevated 2.201 1.224–3.960 0.008 0.825 0.422–1.611 0.572
Fertility sparing surgery
 No 1      
 Yes 1.055 0.063–1.845 0.851    NA
Appendectomy
 No 1      
 Yes 0.394 0.192–0.808 0.011    NA
Invasive implants
 No 1      
 Yes 4.105 2.222–7.583 0.000 0.566 0.208–1.539 0.265