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Table 3 Multivariate survival analyses for the patients with SSC of ovary in the SEER database (2004–2016, N = 180)

From: Poorer prognosis of ovarian squamous cell carcinoma than serous carcinoma: a propensity score matching analysis based on the SEER database

  Overall survival Cause-specific survival
Variables HR 95%CI P-value HR 95%CI P-value
Age
 ≤67 1    1   
 > 67 6.77 2.55–18.01 < 0.001 6.39 1.84–22.25 0.004
Tumor size (mm)
 < 50 1    1   
 50–150 5.17 1.14–23.49 0.033 7.07 0.81–61.35 0.076
 > 150 7.98 1.47–43.42 0.016 12.00 1.21–119.19 0.034
Laterality
 Unilateral 1    1   
 Bilateral 4.01 1.03–15.56 0.045 3.76 0.73–19.38 0.113
FIGO stage
 I 1    1   
 II 1.15 0.25–5.25 0.855 0.82 0.14–4.79 0.823
 III 2.86 0.82–9.92 0.099 1.83 0.43–7.91 0.416
 IV 8.73 2.50–30.46 0.001 9.17 2.32–36.26 0.002
  1. Variables in Cox regression models included: serum CA125, grade, surgery, lymphadenectomy, radiotherapy, and chemotherapy
  2. Abbreviations: SCC Squamous cell carcinoma; SEER Surveillance Epidemiology and End Results Program; FIGO International Federation of Gynecology and Obstetrics