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Table 2 Relative risk (RR) of dying from vulvar cancer

From: Primary Tumor Vascularity, HIF-1α and VEGF expression in vulvar squamous cell carcinomas: their relationships with clinicopathological characteristics and prognostic impact

Variables Univariate analysis Multivariate analysis
RR 95% CIa p RR 95% CIa p
Lymph node metastasis 1.99 1.49–2.65 <0.001 2.28 1.69–3.07 <0.001
Infiltration of vessel 2.20 1.36–3.58 0.001 - - -
Age 1.70 1.20–2.41 0.003 1.92 1.31–2.81 0.001
Tumor diameter 1.40 1.03–1.91 0.03 - - -
HIF-1αb 2.49 1.45–4.28 0.001 2.53 1.46–4.37 0.001
  1. a95% confidence interval.
  2. bLow: ≤ 50% tumor cells and high: > 50% tumor cells.