Table 2.

Repartition of parameters of interest in the new risk classification.

	Final classification population		Low-risk group		High-risk group
	n = 405		n = 319		n = 86
	n	%	n	%	n	%
Tumor and node stage
T1-3 and N1	249	61.5	239	74.9	10	11.6
T4 and/or N2	156	38.5	80	25.1	76	88.4
ctDNA
Yes	45	11.1	17	5.3	28	32.6
No	360	88.9	302	94.7	58	67.4
CEA (ng/mL)
<2	259	63.9	250	78.4	9	10.5
≥2 and <5	123	30.4	63	19.7	60	69.8
≥5	23	5.7	6	1.9	17	19.8

Abbreviations: CEA, carcinoembryonic antigen; ctDNA, circulating DNA.