McColl et al.(4444. McColl K, El-Nujumi AM, Chittajallu RS, Dahill SW, Dorrian CA, E-Omar E, et al. A study of the pathogenesis of Helicobacter pylori-negative chronic duodenal ulceration. Gut. 1993;34:762-8.) (Scotland) |
1993 |
Histology and CLO test |
12 |
DU |
50 |
Graham et al.(2626. Graham D. Foreword. In: Lee A, Mégraud F, editors.Helicobacter pylori: techniques for clinical diagnosis & basic research. London: Saunders; 1996.) (USA) |
1995 |
Histology and CLO test |
139 |
DU |
33 |
Bakkevold(33. Bakkevold KE. Time trends in incidence of peptic ulcer bleeding and associated risk factors in Norway 1985-2008. Clin Exp Gastroenterol. 2010;3:71-7.)(Norway) |
1995 - 1996 |
Histology and CLO test |
62 |
DU |
18 |
25 |
GU |
12 |
Lanza et al.(3838. Lanza F, Ciociola AA, Sykes DL, Sontag SJ, Heath A, McSortey DJ. Ranitidine bismuth citrate plus Claritomicin is effective in eradicatingH. pylori, healing duodenal ulcer, and preventing ulcer relapse. Gastroenterology. 1996;110:A172.) (USA) |
1996 |
Histology and CLO test |
183 |
DU |
30 |
Peterson et al.(4747. Peterson WL, Ciociola AA, Sykes DL, McSorley DJ, Webb DD. Ranitidine bismuth citrate plus claritrommicin is effective for healing duodenal ulcers, eradicating H. pylori and reducing ulcer recurrence. Gastroenterology. 1996;110:A172.) (USA) |
1996 |
Histology and CLO test |
128 |
DU |
27 |
Sprung et al.(6060. Sprung DJ, Gano B. The natural history of duodenal ulcer disease and how it relates to H. pylori – a community study. Am J Gastroenterol. 1997;92:1655-A 286.) (USA) |
1997 |
Histology and CLO test |
59 |
DU |
52 |
Kemppainem et al.(3232. Kemppainem H, Raiha I, Sourander L. Clinical presentation of ulcer peptic in the elderly. Gerontology. 1997;43:283-8.)(Finland) |
1997 |
Histology and CLO test |
125 |
PUD |
30 |
Jyotheeswaran et al.(3131. Jyotheeswaran S, Shah N, Jin HO, Potter GD, Ona FV, et al. Prevalence of Helicobacter pylori in peptic ulcer patients in greater Rochester, NY: is empirical triple therapy justified? Am J Gastroenterol. 1998;93:574-8.)(USA) |
1998 |
Histology and CLO test |
160 |
DU |
39 |
145 |
GU |
39 |
Laine et al. (3737. Laine L, Hopkins RJ, Girardi LS. Has the impact ofHelicobacter pylori therapy on ulcer recurrence in the United States been overstated? A meta-analysis of rigorously designed trials. Am J Gastroenterol. 1998;93:1409-15.) (USA) |
1998 |
Histology and CLO test |
619 |
DU |
20 |
Schubert et al.(5555. Schuber M, DeWitt JM, Taylor CA. Prospective evaluation of the prevalence of H.pylori in duodenal and gastric ulcer: is its role overstated? Gastroenterology. 1999;16:A305.)(USA) |
1999 |
Histology and CLO test |
41 |
DU |
39 |
43 |
GU |
47 |
Ciocola et al. (1616. Ciociola AA, McSorley DJ, Turner K, Syke D, Palmer JB.Helicobacter pylori infection rates in duodenal ulcer patients in the United State may be lower than previously estimated. Am J Gastroenterol. 1999;94:1834-40.) (USA) |
1999 |
Histology and CLO test |
2394 |
DU |
27 |
Xia et al.(6363. Xia H, Phung N, Kalantar J, Talley NJ. Characteristics ofHelicobacter pylori positive and negative peptic ulcer disease. Gastroenterology. 1999;116:A359.)(Australia) |
1999 |
Histology and CLO test |
14 |
DU |
43 |
33 |
GU |
58 |
Bytzer et al.(88. Bytzer P, Teglbjaerg PS, Danish Ulcer Study Group.Helicobacter pylori-negative duodenal ulcer: prevalence, clinical characteristics, and prognosis – results from a randomized trial with 2 –year follow-up. Am J Gastroenterol. 2001;96:1409-16.) (Denmark) |
2001 |
Histology and CLO test |
276 |
DU |
19 |
Bakkevold(33. Bakkevold KE. Time trends in incidence of peptic ulcer bleeding and associated risk factors in Norway 1985-2008. Clin Exp Gastroenterol. 2010;3:71-7.)(Norway) |
2007 - 2008 |
Histology and CLO test |
47 |
DU |
43 |
28 |
GU |
57 |
Feinstein et al.(2222. Feinstein LB, Holman RC, Christensen KLY, Steiner CA, Swerdlow DL. Trends in hospitalizations for peptic ulcer disease, United States, 1998-2005. Research. 2010;16:1410-8.)(USA) |
2010 |
Histology and CLO test |
770 |
DU |
50 |
548 |
GU |
40 |
Marques et al.(4242. Marques SB, Mattar R, Artifon ELA, Sakai P, Carrilho FJ. High prevalence of duodenal ulcer in a tertiary care hospital in the city of São Paulo, SP, Brazil. Arq. Gastroenterol. 2011;48:171-4.)(Brazil) |
2011 |
CLO test |
391 |
DU |
36 |
103 |
GU |
43 |