
doi: 10.1007/bf02236110
pmid: 13872738
The month-to-month incidence of bleeding duodenal ulcer has been determined over an 8-year period by comparing a series of 648 bleeding episodes with the medical and surgical admission rates for months and quarters (seasons). The peak incidence of bleeding peptic ulcer is in November and December. Lowest incidence occurs during the summer, specifically during June and August. Comments concerning the possible mechanisms influencing incidence are given.
Peptic Ulcer, Peptic Ulcer Hemorrhage, Climate, Humans, Hemorrhage, Seasons
Peptic Ulcer, Peptic Ulcer Hemorrhage, Climate, Humans, Hemorrhage, Seasons
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