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Chemoprevention of colorectal cancer by aspirin: a cost-effectiveness analysis.
Suleiman S, Rex DK, Sonnenberg A. Suleiman S, et al. Gastroenterology. 2002 Jan;122(1):78-84. doi: 10.1053/gast.2002.29689. Gastroenterology. 2002. PMID: 11781283
METHODS: A Markov process is used to follow a hypothetical cohort of 100,000 subjects aged 50 years until death. Four strategies are compared: (1) no intervention, (2) colonoscopy once per 10 years and every 3 years in subjects with polyps, (3) chemoprevention with …
METHODS: A Markov process is used to follow a hypothetical cohort of 100,000 subjects aged 50 years until death. Four strategi …
Monthly variation of hospital admission and mortality of peptic ulcer disease: a reappraisal of ulcer periodicity.
Sonnenberg A, Wasserman IH, Jacobsen SJ. Sonnenberg A, et al. Gastroenterology. 1992 Oct;103(4):1192-8. doi: 10.1016/0016-5085(92)91503-v. Gastroenterology. 1992. PMID: 1397877
Hospital admissions peaked during the first 3 months of the year, followed by a marked decline during summer and a second smaller peak around October. ...Although total admissions peaked earlier during the year and showed a less consistent peak in October, th …
Hospital admissions peaked during the first 3 months of the year, followed by a marked decline during summer and a second smal …
Preoperative testing for fecal occult blood: a questionable practice.
Sonnenberg A, Townsend WF. Sonnenberg A, et al. Am J Gastroenterol. 1992 Oct;87(10):1410-7. Am J Gastroenterol. 1992. PMID: 1415097
The decision analysis shows that preoperative FOBT is associated with a smaller benefit than would be its omission. The higher cost and lower net benefit of preoperative FOBT reflect the impact of false-positive tests for occult blood. False-positive FOBT leads to expendit …
The decision analysis shows that preoperative FOBT is associated with a smaller benefit than would be its omission. The higher cost a …
Geographic variation of inflammatory bowel disease within the United States.
Sonnenberg A, McCarty DJ, Jacobsen SJ. Sonnenberg A, et al. Gastroenterology. 1991 Jan;100(1):143-9. doi: 10.1016/0016-5085(91)90594-b. Gastroenterology. 1991. PMID: 1983816
Mortality and hospitalization statistics both suggested that the occurrence of inflammatory bowel disease was determined by environmental factors that had a marked geographic variation within the United States. ...
Mortality and hospitalization statistics both suggested that the occurrence of inflammatory bowel disease was determined by environmental fa …
Epidemiology of inflammatory bowel disease among U.S. military veterans.
Sonnenberg A, Wasserman IH. Sonnenberg A, et al. Gastroenterology. 1991 Jul;101(1):122-30. doi: 10.1016/0016-5085(91)90468-z. Gastroenterology. 1991. PMID: 2044901
The Department of Veterans Affairs maintains a computerized patient treatment file that contains all records from veterans treated as inpatients in VA hospitals distributed throughout the United States. ...Hospital discharges secondary to both Crohn's disease and ulcerativ …
The Department of Veterans Affairs maintains a computerized patient treatment file that contains all records from veterans treated as …
Efficient management of diarrhea in the acquired immunodeficiency syndrome (AIDS). A medical decision analysis.
Johanson JF, Sonnenberg A. Johanson JF, et al. Ann Intern Med. 1990 Jun 15;112(12):942-8. doi: 10.7326/0003-4819-112-12-942. Ann Intern Med. 1990. PMID: 2111109
DESIGN: Medical decision analysis using a decision tree. METHODS: Three management strategies were compared: full evaluation, which included stool culture, ova and parasite examination, stain for protozoa, blood cultures, esophagogastroduodenoscopy with biopsy, and colonos …
DESIGN: Medical decision analysis using a decision tree. METHODS: Three management strategies were compared: full evaluation, which i …
The prevalence of hemorrhoids and chronic constipation. An epidemiologic study.
Johanson JF, Sonnenberg A. Johanson JF, et al. Gastroenterology. 1990 Feb;98(2):380-6. doi: 10.1016/0016-5085(90)90828-o. Gastroenterology. 1990. PMID: 2295392
Results showed that 10 million people in the United States complained of hemorrhoids, corresponding to a prevalence rate of 4.4%. In both sexes, a peak in prevalence was noted from age 45-65 yr, with a subsequent decrease after age 65 yr. The development of h …
Results showed that 10 million people in the United States complained of hemorrhoids, corresponding to a prevalence rate of 4.4%. In …
Clinical epidemiology of chronic constipation.
Johanson JF, Sonnenberg A, Koch TR. Johanson JF, et al. J Clin Gastroenterol. 1989 Oct;11(5):525-36. doi: 10.1097/00004836-198910000-00008. J Clin Gastroenterol. 1989. PMID: 2551954 Review.
Insufficient dietary fiber is widely believed to be a major cause of constipation, yet it is difficult to devise a mechanism by which dietary fiber alone could produce the marked differences observed between gender, race, and socioeconomic status. ...Other environme …
Insufficient dietary fiber is widely believed to be a major cause of constipation, yet it is difficult to devise a mechanism b …
Costs of medical and surgical treatment of duodenal ulcer.
Sonnenberg A. Sonnenberg A. Gastroenterology. 1989 Jun;96(6):1445-52. doi: 10.1016/0016-5085(89)90511-8. Gastroenterology. 1989. PMID: 2565844
The model of a Markov chain was used to compare their costs by a medical decision analysis. The high price of the initial procedure made proximal gastric vagotomy the most expensive therapy, its costs rising from +10,600 after 1 yr to +12,200 after 15 yr. ...Gastric …
The model of a Markov chain was used to compare their costs by a medical decision analysis. The high price of the initial proc …
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