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. 2017 Dec 1;61(6):584–589. doi: 10.1590/2359-3997000000307

Table 4. Risk factors for distant metastasis.

Distant metastasis (n = 27) No distant metastasis (n = 184) RR (IC 95%) p-value
Clinical N1 87.5% 71.4% 1.19 (0.99-1.5) 0.06
Vascular invasion by the primary tumor 50% 28.2% 1.83 (1.19-2.82) 0.04
> 3 cm metastatic lymph nodes 22% 19.5% 1.13 (0.52-2.4) 0.7
Extra nodal extension 12% 9.1% 1.2 (0.39-4.07) 0.7
> 5 metastatic lymph nodes 59% 44.5% 1.3 (0.93-1.8) 0.1
N1b 70.4% 52.1% 1.3 (1.01-1.78) 0.03