Biostatistic

posted by .

A study is conducted in a patient with HIV.Lower CD4 count is associated with advance disease. A researcher is interested in the association between vitamin supplement and CD4 count.A MULTIPLE REGRESSION ANALYSIS is performed relating CD4count to the use of supplements(coaded as 1=yes, 0=No)and to the duration of HIV in years(i.e, the number of years between the diagnosis of HIV and the study date). For the analysis,
y= CD4count
y hat= 501.41+12.67(supplement)-30.23(duration of HIV).
a) What is expected CD4 count for patient taking supplement who has had HIV for 2.5 yyears?
b) what is expected CD4 count for patient not taking supplement who was dignosed with HIV at study enrollment?
c) what is expected CD4 count for patient not taking supplement who has had HIV for 2.5 years?

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Statistics

    I neep help on two questions! A condition that occurs in multiple regression analysis if the independent variables are themselves correlated is known as: 1. autocorrelation 2. stepwise regression 3. multicorrelation 4. multicollinearity …
  2. Biology

    19. Which is NOT a general characteristic of plants?
  3. Biology

    19. Which is NOT a general characteristic of plants?
  4. Biology

    19. Which is NOT a general characteristic of plants?
  5. Math

    A patient needs at least 36 units of vitamin supplement A, at least 36 units of vitamin supplement B and at least 24 units of vitamin supplement C. Local brand capsules contain 2 units of A, 3 units of B and 1 unit of C costs P15, …
  6. Biostatistic

    A study is conducted in patient with HIV. Lower CD4 count is associated with advance disease. The researcher is interested in finding out the relation between supplement vitamins and CD4 count. A multiple regression analysis is performed …
  7. STATISTICS

    In a cross-sectional study of heart disease and gender in middle-aged men and women, 10% of men in the sample had prevalent heart disease compared with only 5% of women in the sample. After adjusting for age in multivariate logistic …
  8. Statistics, epidemio

    Im a medical student and i need to evaluate the Association between depression to cardiovascular disease. 1. what Type of Research Studies makes sense to do?
  9. statistic

    A study was conducted to determine the effectiveness of varying amounts of vitamin C in reducing the number of common colds. A survey of 450 people provided the following information: Daily amount of vitamin C taken None 500 mg 1000 …
  10. statistics

    A female patient has had her red blood cell count tested on 6 occasions. A mean of 4.4 with sample standard deviation, s, of 0.28 was found. Generally, healthy, female adults have a red blood cell count of 4.8. Conduct a hypothesis …

More Similar Questions