Epidemiological study of prostatic cancer by matched-pair analysis.
In 1976, we designed an original questionnaire, consisting of 111 questions, directed at the epidemiology of prostatic disease. A case-control study by matched-pair analysis was conducted on 100 controls matched for age within 1 year and for residence in the same prefecture. Patients with prostatic cancer were distinguished from the general population of men by the following characteristics: 1) belonging to middle or lower socioeconomical class, 2) marriage at a young age and a long married life, 3) precocity, 4) vigorous sexual life followed by a fall-off of sexuality in later life, and 5) Western food habits. Based on analysis of results obtained in this case-control study, a high-risk group for prostatic cancer was outlined.
D000328:Adult; D000367:Age Factors; D000368:Aged; D003075:Coitus; D004522:Educational Status; D005191:Family Characteristics; D005247:Feeding Behavior; D005298:Fertility; D006801:Humans; D007564:Japan; D008297:Male; D008875:Middle Aged; D011471:Prostatic Neoplasms / Q000453:epidemiology* / Q000235:genetics / Q000628:therapy; D012959:Socioeconomic Factors