Question

A total of 500,000 males were reported to have been newly diagnosed or have a history of prostate cancer during the past year. Of these, 38% were white males and 62% were black males. The U.S. population was reported as 100 million, of which 145 million were males and 155 million were females. Among the male population, 110 million were white and 35 million were black.

Calculate the prostate cancer prevalence (per 100,000 population).

A total of 500,000 males were reported to have been newly diagnosed or have a history of prostate cancer during the past year. Of these, 38% were white males and 62% were black males. The U.S. population was reported as 100 million, of which 145 million were males and 155 million were females. Among the male population, 110 million were white and 35 million were black.

Calculate the prostate cancer prevalence (per 100,000) white males.

Answer 1

Total male population =145 million

Total white male population =110 million

Total cases of prostate cancer among males = 500,000

Total cases of prostate cancer among white males = 0.38 * 500,000 = 190000

Prostate cancer prevalence = Number of Prostate cancer cases among males/ Total male population

= 500000 / 145 million

= (190000 / 145 x 10⁶) x 100000   per 100,000

= 344.83 per 100,000

Prostate cancer prevalence for white males = Number of Prostate cancer among white males / Total white male population

= 190000 / 110 million

= (190000 / 110 x 10⁶) x 100000   per 100,000 white males

= 172.73 per 100,000 white males