title: Achalasia in the city of Cardiff from 1926 to 1977.
abstract: A retrospective study of 48 patients, living in the City of Cardiff, diagnosed as having achalasia between 1926 and 1977, was undertaken. The incidence of achalasia was 0.4/10(5)/year. One previous study in Rochester, Minn., of 11 patients had a comparable incidence of 0.6/10(5)/year. Our study failed to identify any aetiological factors.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D002648:Child; D003430:Cross-Sectional Studies; D004651:Employment; D004931:Esophageal Achalasia / Q000453:epidemiology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D012737:Sex Factors; D014852:Wales