A Case-Control Study of Cervix, Breast, and Stomach Cancer Utilizing the Koseki-Record System

Tomio Hirohata, Shinkan Tokudome, Masanori Kuratsune
1972 Nippon Eiseigaku Zasshi (Japanese Journal of Hygiene)  
The present investigation was carried out to examine the possibility of whether or not the Koseki-Record System, unique in Japan and known as an excellent tool for follow-up studies, could also be utilized in case-control studies. Cancer patients and an equal number of sex-age-matched control patients were chosen for the following four groups: cancer of the cervix uteri (103 ea.), cancer of the breast (104 ea.), cancer of the stomach, males (106 ea.) and females (101 ea.). Utilizing the
more » ... ilizing the Koseki-Record System, information on these patients relating to reproductive life was secured within a short time at a minimum cost. In comparison with control patients, breast-cancer patients showed the tendency to marry and
doi:10.1265/jjh.27.483 fatcat:jznvabpobng2vh3vmnq7bfrvv4