Effects of Lactobacillus gasseri OLL2716 on Helicobacter pylori-Associated Dyspepsia: A Multicenter Randomized Double-Blind Controlled Trial

Table 2

Effects of Lactobacillus gasseri consumption on Helicobacter pylori infection and serum pepsinogen levels.

Parameters	Group	Before		After		Before versus after	Group comparison
		Median	25–75 percentile	Median	25–75 percentile	value	value
Stool Hp antigen	L. gasseri group	1.45	0.38–2.38	1.17	0.48–2.13	0.588	0.958
	Placebo group	1.22	0.38–2.83	1.24	0.44–2.50	0.584
UBT	L. gasseri group	19.4	10.4–35.0	21.9	11.1–31.2	0.395	0.516
	Placebo group	19.6	10.3–36.7	19.9	10.3–32.8	0.958
PGI/PGII	L. gasseri group	2.6	2.1–3.5	2.7	2.1–3.6	0.537	0.414
	Placebo group	2.7	2.0–3.9	2.7	2.1–3.7	0.604
PGI	L. gasseri group	61.0	45.2–76.5	63.3	48.5–79.6	0.006	0.497
	Placebo group	59.2	42.0–74.5	62.3	43.9–77.0	0.018
PGII	L. gasseri group	21.4	16.4–32.5	22.5	16.1–35.1	0.012	0.725
	Placebo group	20.6	16.9–27.5	24.3	16.4–29.8	0.003

L. gasseri group, ; placebo group, .
Wilcoxon signed rank sum test.
Mann-Whitney test.