Density of Helicobacter pylori may affect the efficacy of eradication therapy and ulcer healing in patients with active duodenal ulcers

Table 2 Eradication rates and the density of H. pylori

	Eradication rates	95%CI	P value
Intention-to-treat
H. pylori density
Mild	32/36 (88.9%)	73.0%-96.4%
Moderate	33/35 (94.3%)	79.5%-99.0%
Marked	23/33 (69.7%)	51.1%-83.8%
Total	88/104 (84.6%)	75.9%-90.7%	0.013a
Per protocol
H. pylori density
Mild	32/32 (100.0%)	86.7%-100.0%
Moderate	33/33 (100.0%)	87.2%-100.0%
Marked	23/27 (85.2%)	65.4%-95.2%
Total	88/92 (95.7%)	88.6%-98.6%	0.006b

Notes:

^aBased on χ² test;

^bBased on Fisher's exact test.