© 1990 Oxford University Press
research-article |
The Pattern of Cancer in a Large Cohort of Stroke Patients


*Department of Medicine, Copenhagen County Hospital Sct Elisabeth, Denmark
Danish Cancer Registry, Institute of Cancer Epidemiology, Danish Cancer Society Rosenvaengets Hovedvej 35, box 839, Copenhagen, Denmark
Lindvig K (Department of Medicine, Copenhagen County Hospital, Sct Elisabeth, Denmark), MØller H, Mosbech J and MØller Jensen O. The pattern of cancer in a large cohort of stroke patients. International Journal of Epidemiology 1990, 19: 498504.
A cohort of 113 732 stroke patients from Danish Hospital Discharge Registry were, by linkage to the Danish Cancer Registry, found to have developed a total of 5151 cases of cancer in a mean follow-up time of 2.4 years after the diagnosis of stroke. There was no excess of gastric cancer. The present findings fail to support the existence of a common, strong risk factor for stroke and gastric cancer in individuals. In the cohort, more cancer than expected was observed. In particular, a more than ten-fold increase in risk of brain tumours within the first year after stroke diagnosis was observed, suggesting some diagnostic misinterpretation of a brain tumour as a stroke. Minor excesses of cancer of other sites were also found in the first year of follow-up. They are probably due to increased medical surveillance and diagnostic misinterpretation of an underlying malignancy as an incident of cerebrovascular disease, eg through metastatic spread to the brain.
Revised 1 January 1990
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