I could use some help with these 2 problems:

Question 1

A study is conducted in patients with HIV. The primary outcome is CD4 cell count, which is a measure of the stage of the disease. Lower CD4 counts are associated with more advanced disease. The investigators are interested in the association between vitamin and mineral supplements and CD4 count. A multiple regression analysis is performed relating CD4 count to use of supplements (coded as 1 = yes, 0 = no) and to duration of HIV, in years (i.e., the number of years between the diagnosis of HIV and the study date). For the analysis,

= CD4 count.= 501.41 + 12.67 Supplements - 30.23 Duration of HIV

What is the expected CD4 count for a patient not taking supplements who has had HIV for 5 years?

A) 350.26

B) 501.41

C) 30.23

D) 5

Question 2

The data presented is a multiple logistic regression analysis and the models are shown below. In the models below, the data are coded as follows: p = the proportion of children with a diagnosis of ADHD, Child Exposed and Father's Diagnosis are coded as 1 = yes and 0 = no. What is the odds ratio adjusted for father's diagnosis? (Hint: Use only the appropriate model to find the odds ratio)

(1)= -2.216 + 1.480 Child exposed

(2)Father with diagnosis: = -1.665 + 1.297 Child exposed

(3)Father without diagnosis: = -2.343 + 0.823 Child exposed

(4)= -2.398 + 1.501 Child exposed + 0.906 Father's diagnosis

A) 4.49

B) 7

C) 2.88

D) 1.501

Thank you so much