Table 2. 5-year overall survival rates based on percent positive lymph nodes stratified by total number of lymph node dissection.

# of positive node	Lymph nodes removed groups
	0–9; N=3,031	10–19; N=4,515	20–29; N=2,235	30–39; N=784	40+; N=414
0–10%	55.5±1.0	60.3±0.9	65.6±1.4	63±2.3	69.3±3.0
10–20%	35.3±2.8	43.5±2.1	35.9±2.9	36.1±5.2	47±6.2
20%+	22.4±1.2	24±1.1	29.4±1.9	28.3±3.4	24.2±5.3