Table 2. Multiple analysis stratified by T status.

Covariate	T1–2			T3–4
	Hazard ratio (95% CI)	P		Hazard ratio (95% CI)	P
LNs category (ref. ≤4)	–	–
>4–10	–	–		1.25 (0.99–1.79)	0.216
>10–13	–	–		1.66 (0.77–3.57)	0.190
>13	–	–		3.47 (2.00–6.02)	<0.001
LNR category (ref. ≤0.51)
>0.51–0.71	–	–		1.23 (0.75–2.00)	0.405
>0.71	–	–		2.07 (1.40–3.05)	<0.001

Adjustment of age, gender, race, marital status, T stage and No. of LN removed. LN, lymph node; LNR, lymph node ratio.