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. 2025 Feb 17;18:30. doi: 10.1186/s13048-025-01607-4

Table 3.

Univariate and multivariate Cox regression analysis for PFS and OS in early stage epithelial ovarian patients

PFS OS
Univariate analysis Multivariate analysis Univariate analysis Multivariate analysis
HR (95% CI) P value HR (95% CI) P value HR (95% CI) P value HR (95% CI) P value
Age
 ≤ 53 Ref Ref Ref Ref
 > 53 1.31 (0.72–2.39) 0.372 0.95 (0.48–1.90) 0.895 1.61 (0.80–3.22) 0.180 1.47 (0.67–3.22) 0.335
PNI
 Low Ref Ref Ref Ref
 High 0.31 (0.16–0.59)  < 0.001 0.39 (0.20–0.76) 0.006 0.36 (0.17–0.76) 0.007 0.44 (0.20–0.97) 0.042
SII
 Low Ref Ref Ref Ref
 High 2.72 (1.42–5.22) 0.003 2.43 (1.23–4.81) 0.011 2.43 (1.21–4.89) 0.013 2.05 (0.96–4.39) 0.064
Histology
 HGSC Ref Ref Ref Ref
 Others 0.71 (0.38–1.36) 0.304 0.71 (0.35–1.42) 0.335 1.08 (0.49–2.42) 0.843 1.27 (0.52–3.08) 0.599
FIGO stage
 I Ref Ref Ref Ref
 IIA 1.42 (0.66–3.07) 0.371 1.26 (0.56–2.84) 0.570 1.57 (0.68–3.64) 0.295 1.34 (0.55–3.26) 0.520
Comorbidities
 No Ref Ref Ref Ref
 Yes 1.77 (0.89–3.52) 0.101 1.63 (0.75–3.56) 0.217 2.39 (1.13–5.07) 0.022 2.13 (0.94–4.83) 0.071
Family history of cancer
 No Ref Ref Ref Ref
 Yes 0.84 (0.33–2.13) 0.713 0.58 (0.22–1.53) 0.268 0.68 (0.21–2.24) 0.525 0.58 (0.17–1.96) 0.379
Lymphadenectomy
 No Ref Ref Ref Ref
 Yes 0.50 (0.25–1.03) 0.059 0.63 (0.28–1.38) 0.244 0.51 (0.24–1.05) 0.068 0.59 (0.28–1.25) 0.170

PNI Prognostic Nutritional Index, SII Systemic immune-inflammation index, FIGO International Federation of Gynecology and Obstetrics, HGSC High-grade serous carcinoma