Table 1.

Prostate Cancer Content Questions.

Question number	Question text	Example key points
1	Does the app provide information about the location of the prostate?	The prostate is a gland part of the male reproductive system.
2	Does the app provide information about the function of the prostate?	The prostate produces some of the fluid in semen.
3	Does the app provide information about the prevalence and incidence of PrCA?	About 1 in 7 men is diagnosed with PrCA during his lifetime.
4	Does the app provide information about the risks for PrCA?	African American men are more than twice as likely than White men to die from PrCA. PrCA is less prevalent among Asian-American men and Hispanic/Latino men when compared to their White counterparts.
5	Does the app provide information about the recommended screening age?	Screening age is 45 for men at high risk, including African American men and men who have a first-degree relative, especially if diagnosed at a younger age.
6	Does the app provide information about the symptoms of PrCA?	It is uncommon for early stages of PrCA to cause symptoms and advanced stages only sometimes cause symptoms, which include: urinary problems, erectile dysfunction, etc.
7	Does the app provide information about the digital rectal exam?	The digital rectal exam does not have 100% accuracy and can have both false-positive and false-negative results.
8	Does the app provide information about the PSA test?	PSA stands for Prostate-Specific Antigen blood test, which is sensitive to other factors and therefore not 100% accurate.
9	Does the app provide information about PSA levels related to the probability of having PrCA?	Men with PSA levels 4 < 10 have about 25% chance of having PrCA.
10	Does the application discuss the controversy behind PSA screening?	Not everyone agrees that PSA screening should be performed on an annual basis.