Preoperative blood markers and intra-abdominal infection after colorectal cancer resection

Table 1 Comparison of general information between the patient groups

	IAI group (%)	Non-IAI group (%)	t/χ2	P value
Sample size	15	65	–	–
Gender
Male	11 (73.3)	35 (53.8)	1.894	0.169
Female	4 (26.7)	30 (46.2)
Age	65.63 ± 13.03	57.75 ± 12.86	-2.119	0.046
BMI	24.05 ± 3.47	22.94 ± 2.99	-1.257	0.212
Smoking history
Yes	6 (40.0)	20 (30.8)	0.473	0.491
No	9 (60.0)	45 (69.2)
Hypertension
Yes	10 (66.7)	33 (50.8)	1.239	0.266
No	5 (33.3)	32 (49.2)
Diabetes
Yes	8 (53.3)	38 (58.5)	0.131	0.717
No	7 (46.7)	27 (41.5)
Preoperative anemia
Yes	12 (80.0)	47 (72.3)	0.373	0.542
No	3 (20.0)	18 (27.7)
Tumor site
Left	8 (53.3)	37 (56.9)	0.064	0.801
Right	7 (46.7)	28 (43.1)
Degree of differentiation
Medium and above	9 (60.0)	30 (46.2)	0.935	0.334
Low	6 (40.0)	35 (53.8)
Infiltration depth
T3 + T4	8 (53.3)	38 (58.5)	0.131	0.717
T1 + T2	7 (46.7)	27 (41.5)
Tumor diameter (cm)	4.69 ± 1.15	4.79 ± 1.21	0.293	0.770
Lymphatic metastasis
Yes	6 (40.0)	23 (35.4)	0.112	0.737
No	9 (60.0)	42 (64.6)
Gross classification of tumor
Ulcerative	4 (26.7)	13 (20.0)	0.500	0.868
Wettability	7 (46.7)	31 (47.7)
Uplift type	4 (26.7)	21 (32.3)
Intraoperative bleeding	388.58 ± 59.27	402.23 ± 57.11	0.810	0.428

IAI: Intra-abdominal infection, BMI: Body mass index.