Question

7.A common problem with HIV is that mothers infected with HIV can pass the virus on to their infant at birth. A group of scientists conducted a study to evaluate the effectiveness of a drug (Zidovudine) in reducing maternal-infant transmission of HIV. They enrolled 363 pregnant women with HIV; 180 of these women received the Zidovudine treatment. A total of 53 infants tested HIV positive; 40 of the 53 infants who tested positive received the placebo instead of the treatment. Create and fill in a 2x2 table (OPTIONAL) to help you answer the following questions:

a.What is the cumulative incidence of HIV in infants who received the treatment (exposed)?

b.What is the cumulative incidence of HIV in infants who received the placebo (not exposed)?

c.What can you conclude from this?

Answer 1

answers :

a. cummulative incidence with treatment = 0.0722

b. cummulative incidence with placebo = 0.2186

c. conclusion = chances of HIV lower with treatment

P.S. (please upvote if you find the answer satisfactory)