The metabolic parameters based on volume in PET/CT are associated with clinicopathological N stage of colorectal cancer and can predict prognosis

EJNMMI Research

Table 1 Patient characteristics

	N pos	N neg	p
Age (< 65 years/≥ 65 years)	4/12	24/44	0.560857
Sex (female/male)	10/6	24/44	0.053917
Primary lesion location
Right colon/left colon	4/12	14/54	0.738752
Pathological staging (JCCC 8th edition)
Tis + T1 + T2/T3 + T4	0/16	22/46	0.008809
Stage1 + 2/3 + 4	3/13	67/1	< 0.001
Histological types
W/D + M/D + Pap / P/D + Muc	12/4	58/10	0.454159
Diameter
≤ 4 cm/> 4 cm	4/12	34/34	0.095556

Pathological staging: T stage and Stage in Japanese Classification of Colorectal Carcinoma (8th edition), W/D: well-defined adenocarcinoma, M/D: adenocarcinoma with moderate differentiation, P/D: adenocarcinoma with poor differentiation, Pap: papillary adenocarcinoma, Muc: mucinous adenocarcinoma. P-values were calculated with Fisher’s exact test