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International Journal of Epidemiology 2002;31:27-28
© International Epidemiological Association 2002

Reprints and Reflections

Commentary: Peptic ulcer, Susser and Stein and the cohort phenomenon

Michael Langman

Department of Medicine, University of Birmingham, Queen Elizabeth Hospital, Birmingham B15 2TH, UK.

Forty years have elapsed since Susser and Stein used mortality data to examine trends in the impact of peptic ulcer disease.1 They pointed to evidence that morbidity and mortality attributable to peptic ulcer had increased in frequency from the latter part of the 19th century, with gastric ulcer being the first to rise, and that there was evidence from various sources to suggest an abatement might be occurring in the middle of the 20th century.2–4 Using cohort analyses they went on to suggest that mortality data were compatible with a cohort phenomenon thus ‘Cohort analysis—that is, an analysis that follows each age group as it grows older through the years—shows . . . [Full Text of this Article]

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