Comparison of decompression tubes with metallic stents for the management of right-sided malignant colonic obstruction

Table 1 Patient characteristics and clinicopathological findings

	All cases	Decompression tube	SEMS	P value
Cases	40	21	19
Age (median, IQR)	67.5(59-78.75)	68(62.5-78.5)	66.5(56.5-81)	0.63
Sex
Male	19	11	8
Female	21	10	11	0.545
BMI (median, IQR)	22.1 (21.1-24.9)	23.0 (21.8-26.1)	21.6 (20.6-23.5)	0.098
Location
Cecum	4	4	0
Ascending colon	17	6	11
Transverse colon	19	11	8	0.053
Histological type
W/D and M/D	35	18	17
P/D, muc, and sig	5	3	2	1
Lymphatic invasion
absent	4	0	4
present	36	21	15	0.042
Vascular invasion
absent	5	1	4
present	35	20	15	0.172
TNM stage
2	17	8	9
3	17	12	5
4	6	1	5	0.063
Observation period (median, IQR)	3.02 (1.51-5.00)	4.43 (1.88-5.83)	2.05 (1.32-3.39)	0.075

IQR: Interquartile range; BMI: Body mass index; LN: Lymph nodes; W/D: Well differentiated; M/D: Moderately differentiated; P/D: Poorly differentiated; muc: Mucinous adenocarcinoma; sig: Signet ring cell carcinoma; SEMS: Self-expandable metallic stents.