Comparison of Endoscopic Radiofrequency Ablation and Argon Plasma Coagulation in Patients with Gastric Low-Grade Intraepithelial Neoplasia: A Large-Scale Retrospective Study

Table 1

Baseline characteristics, procedure-related parameters, and follow-ups.

	RFA group (n = 73)	APC group (n = 50)	value
Sex, male/female (n)	45/28	32/18	0.791
Age, mean ± standard deviation (years)	57.1 ± 10.8	56.5 ± 11.2	0.759
A course of disease, n (%)			0.459
<1 year	40 (54.8)	24 (48.0)
>1 year	33 (45.2)	26 (52.0)
Macroscopic type, n (%)			<0.001
0-I	0 (0)	25 (50.0)
0-II	73 (100)	23 (46.0)
0-III	0 (0)	2 (4.0)
Ulceration	0	0
Location of lesions, n (%)			0.917
Gastric fundus	1 (1.4)	1 (2.0)
Gastric body	4 (5.5)	3 (6.0)
Angle of the stomach	29 (39.7)	17 (34.0)
Gastric antrum	39 (53.4)	29 (58.0)
Size of lesions, mean ± standard deviation (cm)	2.6 ± 1.0	1.5 ± 0.6	<0.001
Operating time, mean ± standard deviation (min)	15.2 ± 1.8	14.7 ± 1.8	0.133
Submucosal injection, n (%)	32 (43.8)	20 (40.0)	0.672
Helicobacter pylori infection, n (%)			0.525
Yes	15 (20.5)	8 (16.0)
No	58 (79.5)	42 (84.0)
Atrophy, n (%)			0.299
Yes	27 (37.0)	14 (28.0)
No	46 (63.0)	36 (72.0)
2-year follow-up, n (%)
Curative	66 (90.4)	45 (90.0)	1.000
Relapse	7 (9.6)	5 (10.0)	1.000
Recurrence	7 (9.6)	6 (12.0)	0.669
Progression	2 (2.7)	2 (4.0)	1.000
Abdominal pain, n (%)	42 (57.5)	31 (62.0)	0.620