Table 1

Regression and progression of histopathology by different treatment arms^*

Group	No change	Regression
Group	n	n	OR (95% CI)^*
Intention-to-treat analysis
Placebo	78	99	1.00
Anti-Hp+celecoxib	59	114	1.50 (0.97 to 2.32)
Anti-Hp+placebo	55	126	1.80 (1.16 to 22.78)
Celecoxib+placebo	61	120	1.55 (1.01 to 22.38)
Per-protocol analysis
Placebo^†	67	82	1.00
Anti-Hp+celecoxib^‡	47	84	1.48 (0.91 to 2.40)
Anti-Hp+placebo^‡	36	96	2.19 (1.32 to 3.64)
Celecoxib+placebo^†	49	102	1.72 (1.07 to 2.76)

↵* ORs and 95% CIs were calculated by logistic regression and adjusted for age, sex, smoking and drinking status.
↵† The participants who remained H pylori positive.
↵‡ The participants in whom H pylori was eradicated (negative by carbon-13 urea breath test after 45 days).