Table 2.

Clinical response to eradication therapy according to H. pylori infection status.

Variables	H. pylori+ (n = 42)	H. pylori− (n = 12)	P value
Initial H. pylori eradication (%)	41 (100)∗	6 (50)†
Successful eradication (%)	35 (85)
Response to H. pylori eradication (%)
Complete remission	35 (85)	3 (50)	0.133
Partial remission	2 (5)	0 (0)
Stable disease	4 (10)	2 (33)
Progressive disease	0 (0)	1 (17)
Median time to achieve CR (month, SD)	4.8 (1.1)	6.1 (1.5)	0.108
CR maintenance period (month, SD)	28.0 (19.1)	32.0 (18.0)	0.442
Relapse rate after CR	3 (9)	1 (33)	0.718

^∗One patient received chemotherapy initially due to advanced stage. ^†Three patients underwent chemotherapy and other three patients were treated with radiotherapy initially.

SD: standard deviation; H. pylori: Helicobacter pylori; CR: complete remission.