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Erschienen in: Digestive Diseases and Sciences 8/2009

01.08.2009 | Original Article

Hospitalization for Achalasia in the United States 1997–2006

verfasst von: Amnon Sonnenberg

Erschienen in: Digestive Diseases and Sciences | Ausgabe 8/2009

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Abstract

Background and Aims

The Nationwide Inpatient Sample (NIS) of the Healthcare Cost and Utilization Project (HCUP) was used to study the demographic characteristics of achalasia patients.

Methods

HCUP data from 1997 to 2006 were stratified by categories pertaining to patient demographics, such as age, sex, race, income, residence in metropolitan area, and region of the United States, as well as categories pertaining to hospital characteristics, such teaching status, location, and bed size. The distributions of inpatients among different categories were compared between achalasia and all other diagnoses, using odds ratios and their 95% confidence intervals for comparison.

Results

The annual hospitalization rates of achalasia revealed a clear-cut age-dependent rise between the youngest age group less than 18 years old (0.25/100,000) and the oldest age group over 85 years old (37.35/100,000). Between 1997 and 2007, the rates of hospitalization remained largely unchanged for all age groups alike. Achalasia was equally distributed among men and women and among various ethnic groups. Compared with other diagnoses, achalasia was more frequent among hospitalized patients from zip codes associated with a higher average income (1.26, 1.23–1.29), living in metropolitan areas (1.12, 1.09–1.15), and living in the northeast region of the United States (1.27, 1.25–1.30). Achalasia patients were mostly seen in large hospitals (1.22, 1.19–1.26), teaching hospitals (1.73, 1.70–1.76), and hospitals located in metropolitan areas (1.15, 1.14–1.15).

Conclusions

With exception of its striking age-dependence, the epidemiology of achalasia does not reveal any clues about its yet unsolved etiology.
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Metadaten
Titel
Hospitalization for Achalasia in the United States 1997–2006
verfasst von
Amnon Sonnenberg
Publikationsdatum
01.08.2009
Verlag
Springer US
Erschienen in
Digestive Diseases and Sciences / Ausgabe 8/2009
Print ISSN: 0163-2116
Elektronische ISSN: 1573-2568
DOI
https://doi.org/10.1007/s10620-009-0863-8

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