Table 3.

Relative risk (RR) of dying from vulvar cancer

Variable	Grouping	Ratio of risk (RR)	95% CI	p
FIGO	1a vs 1b vs II vs III vs IV	1.86	1.18–2.9	0.007
Lymph nodes metastsis	Absent vs Present	1.49	1.00–2.23	0.05
Age	25–69 yrs vs 70–84 yrs vs = 85 yrs	1.10	1.00–1.04	0.05
Depth of invasion	0.0–4.0 mm vs 4.1–8.0 mm vs 8.1–35.0 mm	1.82	1.13–2.94	0.01