Table 1.

Patient characteristics

Characteristics		ARC group (n=38)	Control group (n=23)	p
Sex, n (%)	Female	11 (28.9)	8 (34.8)	0.633
	Male	27 (71.1)	15 (65.2)
Age (years)	Median (IQR)	65.5 (17.7)	68.0 (12)	0.421
Tumor type, n (%)	Cholangiocarcinoma	2 (5.3)	0 (0.0)	0.288
	Colorectal	15 (39.5)	6 (26.1)
	HCC	9 (23.7)	10 (43.5)
	Melanoma	3 (7.9)	0 (0.0)
	Neuroendocrine	8 (21.1)	7 (30.4)
	Esophagus	1 (2.6)	0 (0.0)
No. of lesions per patient	Median (IQR)	3.0 (2)	2.0 (4)	0.421

ARC, antireflux catheter; IQR, interquartile range; HCC, hepatocellular carcinoma.

For continuous variables, Mann-Whitney U test was used. For categorical variables, comparisons were made using chi-square test or, when expected counts was low, a Fisher-Freeman-Halton test.