title: Blood group distribution in women with ovarian cancer.
abstract: The distribution of ABO blood groups and Rh factor was studied in 1930 patients treated at Radiumhemmet for ovarian tumour in the period 1958-1973. The tumour was malignant in 1732 cases and of borderline malignancy in 198. A predominance of blood group A at the expense of group O emerged when the series was compared with findings in 24 120 healthy conscripts. In the present series, the disparity between the frequencies of blood groups A and O appeared to increase the risk of ovarian carcinoma by 19%. The frequencies of blood groups among various histological subgroups are discussed.
mesh_terms: D004812:Epidemiologic Methods; D005260:Female; D006801:Humans; D008297:Male; D010051:Ovarian Neoplasms / Q000097:blood*; D012204:Rh-Hr Blood-Group System; D013548:Sweden
chemical_list: D012204:Rh-Hr Blood-Group System