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||Physical characteristics and factors related to sexual development and behaviour and the risk for prostatic cancer.
||Hayes RB, de Jong FH, Raatgever J, Bogdanovicz J, Schroeder FH, van der Maas P, Oishi K, Yoshida O
||Eur J Cancer Prev
||A case-control study of prostatic cancer was carried out to examine the association between selected physical characteristics and factors related to sexual development and behaviour and the risk for this disease. In consideration of an endocrinologic mechanism for these putative risk factors, the association between selected factors and serum hormone level in a comparison group, free of prostate cancer, was also examined. One-hundred cases and 113 controls were included for study. An elevated risk for prostatic cancer was found for those currently married (odds ratio (OR) = 4.0), those who had been married once (OR = 2.8), and those who were currently practising a religion (OR = 2.0). Compared to subjects with one child, those with more than one child and those with no children were more common among cases than controls. Prostatic cancer risk was associated with large body size and, in particular, with greater weight (p < 0.01). Early age at attainment of adult height was also associated with prostatic cancer risk (p < 0.01). Only moderate associations were found between increased frequency of sexual intercourse and prostatic cancer risk. The levels of testosterone (T), dihydrotestosterone, salivary testosterone and T/SHBG (sex hormone binding globulin) did not vary with age. Older men had higher oestradiol levels. Further, little association between hormone levels and risk factors was found, except for married subjects having increased serum androgens (p < 0.05) and heavy subjects having decreased serum androgens (not significant).