title: Digestive and liver diseases statistics, 2004.
abstract: OBJECTIVE
  Digestive and liver diseases are associated with substantial morbidity and mortality in the United States. Statistics about the incidence, prevalence, mortality, and resource utilization of digestive and liver diseases in the United States may be cumbersome to obtain because they are scattered in multiple sources. These data may be useful for policy makers, grant applicants, and authors.
  
  
  METHODS
  Data on the most common gastrointestinal and liver diseases were collected from large publicly available national databases. Information was collected on inpatient and outpatient gastrointestinal complaints and diagnoses, gastrointestinal cancers, and deaths from common liver diseases.
  
  
  RESULTS
  The leading gastrointestinal complaint prompting an outpatient visit is abdominal pain, with 12.2 million annual visits, followed by diarrhea, nausea, and vomiting. Abdominal pain is the leading outpatient gastrointestinal diagnosis, accounting for 5.2 million visits annually, followed by gastroesophageal reflux disease, with 4.5 million visits. Gallstone disease is the most common inpatient diagnosis, with 262,411 hospitalizations and a median inpatient charge of USD$11,584. Colorectal cancer is the most common gastrointestinal cause of death and is the most common gastrointestinal cancer, with an incidence of 54 per 100,000. Among gastrointestinal cancers, primary liver cancer had the highest increase in incidence from 1992 to 2000.
  
  
  CONCLUSIONS
  Gastrointestinal and liver diseases are associated with significant outpatient and inpatient healthcare utilization. Following trends in utilization is important for determining allocation of resources for health care and research.
authors.affiliation: Division of Gastroenterology and Hepatology, Department of Medicine, University of North Carolina, Chapel Hill, NC 27599-7555, USA.
authors.forename: Mark W
authors.initials: MW
authors.lastname: Russo
authors.forename: Jeffrey T
authors.initials: JT
authors.lastname: Wei
authors.forename: Michelle T
authors.initials: MT
authors.lastname: Thiny
authors.forename: Lisa M
authors.initials: LM
authors.lastname: Gangarosa
authors.forename: Alphonso
authors.initials: A
authors.lastname: Brown
authors.forename: Yehuda
authors.initials: Y
authors.lastname: Ringel
authors.forename: Nicholas J
authors.initials: NJ
authors.lastname: Shaheen
authors.forename: Robert S
authors.initials: RS
authors.lastname: Sandler
mesh_terms: D001660:Biliary Tract Diseases / Q000401:mortality; D002423:Cause of Death; D004066:Digestive System Diseases / Q000453:epidemiology* / Q000401:mortality; D005767:Gastrointestinal Diseases / Q000401:mortality / Q000628:therapy; D005770:Gastrointestinal Neoplasms / Q000453:epidemiology; D006760:Hospitalization / Q000706:statistics & numerical data; D006801:Humans; D015994:Incidence; D007239:Infections / Q000453:epidemiology; D008107:Liver Diseases / Q000453:epidemiology* / Q000401:mortality; D014481:United States / Q000453:epidemiology