Correlation between abdominal computed tomography signs and postoperative prognosis for patients with colorectal cancer

Table 1 Univariate analysis of postoperative death in patients with colorectal cancer, n (%)

Data		Death group (n = 23)	Survival group (n = 65)	χ2	P value
Gender	Male	14 (60.87)	37 (56.92)	0.109	0.742
	Female	9 (39.13)	28 (43.08)
Age	≥ 60 years	15 (65.22)	36 (55.38)	0.674	0.412
	< 60 years	8 (34.78)	29 (44.62)
BMI	< 18.5 kg/m2	0 (0.00)	4 (6.15)	16.992	< 0.001
	18.5-24 kg/m2	11 (47.83)	55 (84.62)
	> 24 kg/m2	12 (52.17)	6 (9.23)
Smoking history	Yes	9 (39.13)	23 (35.38)	0.103	0.748
	No	14 (60.87)	42 (64.62)
Drinking history	Yes	7 (30.43)	18 (27.69)	0.063	0.802
	No	16 (69.57)	47 (72.31)
Pathological stage	I	0 (0.00)	10 (15.38)	15.401	0.001
	II	7 (30.43)	39 (60.00)
	III	12 (52.17)	13 (20.00)
	IV	4 (17.39)	3 (4.62)
Blood vessel invasion	Yes	1 (4.35)	2 (3.08)	< 0.001	> 0.999
	No	22 (95.65)	63 (96.92)
Degree of tumor differentiation	Poorly differentiated	6 (26.09)	5 (7.69)	8.950	0.011
	Moderately differentiated	16 (69.57)	42 (64.62)
	Highly differentiated	1 (4.35)	18 (27.69)
Lymphatic metastasis	Yes	10 (43.48)	14 (21.54)	4.123	0.042
	No	13 (56.52)	51 (78.46)
Tumor site	Right semicolon	8 (34.78)	12 (18.46)	2.824	0.244
	Left semicolon	5 (21.74)	14 (21.54)
	Rectum	10 (43.48)	39 (60.00)
Intestinal wall thickening form	Polyps or cauliflower thickening	6 (26.09)	9 (13.85)	2.201	0.532
	Eccentric thickening	9 (39.13)	28 (43.08)
	Uneven ring thickening	6 (26.09)	24 (36.92)
	Uniform ring thickening	2 (8.70)	4 (6.15)
Degree of periintestinal infiltration	Mild	0 (0.00)	33 (50.77)	48.385	< 0.001
	Moderate	4 (17.39)	27 (41.54)
	Severe	19 (82.61)	5 (7.69)
Transformation rate of signal	Mild	8 (34.78)	22 (33.85)	2.879	0.237
	Moderate	6 (26.09)	28 (43.08)
	Severe	9 (39.13)	15 (23.08)
Low-density area after enhancement	Yes	13 (56.52)	40 (61.54)	0.178	0.673
	No	10 (43.48)	25 (38.46)
Lymph node location	Mesenterium	15 (65.22)	36 (55.38)	1.234	0.540
	Root	7 (30.43)	22 (33.85)
	Lateral	1 (4.35)	7 (10.77)
Tumor size	< 4 cm	4 (17.39)	38 (58.46)	11.486	0.001
	≥ 4 cm	19 (82.61)	27 (41.54)
Lymph node CT value	< 30 HU	4 (17.39)	39 (60.00)	10.697	0.001
	≥ 30 HU	19 (82.61)	26 (40.00)
Mean tumor long-axis diameter	< 0.6 cm	4 (17.39)	35 (53.85)	7.731	0.005
	≥ 0.6 cm	19 (82.61)	30 (46.15)
Mean tumor short-axis diameter	< 0.45 cm	5 (21.74)	36 (55.38)	7.729	0.005
	≥ 0.45 cm	18 (78.26)	29 (44.62)

BMI: Body mass index; CT: Computed tomography.