BACKGROUND & AIMS: The epidemiology of gastroparesis is unknown. We aimed to determine the incidence, prevalence, and outcome of gastroparesis in the community. METHODS: Using the Rochester Epidemiology Project, a medical records linkage system in Olmsted County, Minnesota, we identified county residents with potential gastroparesis. The complete medical records were reviewed by a gastroenterologist. Three diagnostic definitions were used: (1) definite gastroparesis, delayed gastric emptying by standard scintigraphy and typical symptoms for more than 3 months; (2) probable gastroparesis, typical symptoms and food retention on endoscopy or upper gastrointestinal study; (3) possible gastroparesis, typical symptoms alone or delayed gastric emptying by scintigraphy without gastrointestinal symptoms. Poisson regression was used to assess the association of incidence rates with age, sex, and calendar period. RESULTS: Among 3604 potential cases of gastroparesis, 83 met diagnostic criteria for definite gastroparesis, 127 definite plus probable gastroparesis, and 222 any of the 3 definitions of gastroparesis. The age-adjusted (to the 2000 US white population) incidence per 100,000 person-years of definite gastroparesis for the years 1996-2006 was 2.4 (95% confidence interval [CI], 1.2-3.8) for men and 9.8 (95% CI, 7.5-12.1) for women. The age-adjusted prevalence of definite gastroparesis per 100,000 persons on January 1, 2007, was 9.6 (95% CI, 1.8-17.4) for men and 37.8 (95% CI, 23.3-52.4) for women. Overall survival was significantly lower than the age- and sex-specific expected survival computed from the Minnesota white population (P<.05). CONCLUSIONS: Gastroparesis is an uncommon condition in the community but is associated with a poor outcome.
BACKGROUND & AIMS: The epidemiology of gastroparesis is unknown. We aimed to determine the incidence, prevalence, and outcome of gastroparesis in the community. METHODS: Using the Rochester Epidemiology Project, a medical records linkage system in Olmsted County, Minnesota, we identified county residents with potential gastroparesis. The complete medical records were reviewed by a gastroenterologist. Three diagnostic definitions were used: (1) definite gastroparesis, delayed gastric emptying by standard scintigraphy and typical symptoms for more than 3 months; (2) probable gastroparesis, typical symptoms and food retention on endoscopy or upper gastrointestinal study; (3) possible gastroparesis, typical symptoms alone or delayed gastric emptying by scintigraphy without gastrointestinal symptoms. Poisson regression was used to assess the association of incidence rates with age, sex, and calendar period. RESULTS: Among 3604 potential cases of gastroparesis, 83 met diagnostic criteria for definite gastroparesis, 127 definite plus probable gastroparesis, and 222 any of the 3 definitions of gastroparesis. The age-adjusted (to the 2000 US white population) incidence per 100,000 person-years of definite gastroparesis for the years 1996-2006 was 2.4 (95% confidence interval [CI], 1.2-3.8) for men and 9.8 (95% CI, 7.5-12.1) for women. The age-adjusted prevalence of definite gastroparesis per 100,000 persons on January 1, 2007, was 9.6 (95% CI, 1.8-17.4) for men and 37.8 (95% CI, 23.3-52.4) for women. Overall survival was significantly lower than the age- and sex-specific expected survival computed from the Minnesota white population (P<.05). CONCLUSIONS:Gastroparesis is an uncommon condition in the community but is associated with a poor outcome.
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