Some epidemiologic variables in prostatic carcinoma in California
Krain, L.S.
Preventive Medicine 3(1): 154-159
1974
ISSN/ISBN: 0091-7435 PMID: 4406003 DOI: 10.1016/0091-7435(74)90070-xDocument Number: 502275
A special epidemiologic questionnaire was administered to 221 patients with prostatic cancer, age and race-matched to 221 patients with noncancerous, nongenitourinary conditions from various Los Angeles area hospitals. All control patients also underwent rectal examination and had normal prostatic acid phosphatase examinations to insure that there were no latent cases of prostatic cancer that would obscure comparative differences.There was a statistically significant (P < 0.05) excess of familially associated prostatic cancers, past history of venereal disease, coital frequency, number of sexual partners before marriage, and the use of contraceptive agents in the prostatic cancer cases versus the controls. In contrast to earlier studies, there was no significant difference between cases and controls for the variable of number of sexual partners after marriage.