[Incidence and distribution of tumor disease in relatives. 1. Degrees of stomach carcinoma patients].
The incidence and distribution of malignancies have been analyzed in 435 first degree relatives of 56 patients with histologically proven stomach cancer following the collection of detailed family histories. Eleven stomach cancers were found whereas only three could be expected from age and sex matched incidence data of the local tumour registry. The incidence of all other cancer entities corresponded to that of the whole population. In general, more attention should be paid to the family history, since, among other criteria, it may help to identify individuals at risk and therefore allow the early detection of stomach cancer.