For both Caucasians and African Americans (seperately), estimate the OR between late age at menarche (¥12) and

Question:

For both Caucasians and African Americans (seperately), estimate the OR between late age at menarche (‰¥12) and ovarian cancer risk and provide a 95% CI about these estimate?

Cancer

Results from a population-based case€“control study of ovarian cancer were recently reported from the North Carolina Case€“Control Study based on data collected from 1999€“2008 [53]. Cases were women with ovarian cancer who were ages 20€“74 from 48 North Carolina counties; controls were frequency matched by age and race and were recruited from the same geographic regions using randomdigit dialing. Controls could not have a bilateral oophorectomy. The data in Table 13.61 were reported concerning the association between age at menarche (age when periods begin) and ovarian cancer.

Table 13.61 Association between age at menarche and ovarian cancer

African Americans Caucasians Controls Cases Controls Age at menarche Cases 181 53 28 82 157 <12 708 562 136 212