From: Efficacy of a 7-day course of furazolidone, levofloxacin, and lansoprazole after failed Helicobacter pylorieradication
age (years)
mean
48
median
range
20 – 71
sex
female
29 (60%)
tobacco use
17 (35%)
ulcer type
duodenal
33 (69%)
gastric
11 (23%)
gastric + duodenal
4 (8%)
previous failed treatments
1
28 (58%)
2
13 (27%)
3 or more
7 (15%)