CD4 cells are carried in the blood as part of the human immune system. One of the effects of the HIV virus is that these cells die. In this study of the effectiveness of a new anti-viral drug on HIV, 20 HIV-positive patients had their CD4 counts recorded (“Baseline”) and then were put on a course of treatment with this drug. After using the drug for one year, their CD4 counts were again recorded (“OneYear”). The aim was to show that patients taking the drug had increased CD4 counts which is not generally seen in HIV-positive patients. Baseline OneYear 2.12 2.47 4.35 4.61 3.39 5.26 2.51 3.02 4.04 6.36 5.1 5.93 3.77 3.93 3.35 4.09 4.1 4.88 3.35 3.81 4.15 4.74 3.56 3.29 3.39 5.55 1.88 2.82 2.56 4.23 2.96 3.23 2.49 2.56 3.03 4.31 2.66 4.37 3.00 2.40 1) What is the correlation between baseline and one year CD4 counts?
CD4 cells are carried in the blood as part of the human immune system. One of the effects of the HIV virus is that these cells die. In this study of the effectiveness of a new anti-viral drug on HIV, 20 HIV-positive patients had their CD4 counts recorded (“Baseline”) and then were put on a course of treatment with this drug. After using the drug for one year, their CD4 counts were again recorded (“OneYear”). The aim was to show that patients taking the drug had increased CD4 counts which is not generally seen in HIV-positive patients.
|
Baseline |
OneYear |
|
2.12 |
2.47 |
|
4.35 |
4.61 |
|
3.39 |
5.26 |
|
2.51 |
3.02 |
|
4.04 |
6.36 |
|
5.1 |
5.93 |
|
3.77 |
3.93 |
|
3.35 |
4.09 |
|
4.1 |
4.88 |
|
3.35 |
3.81 |
|
4.15 |
4.74 |
|
3.56 |
3.29 |
|
3.39 |
5.55 |
|
1.88 |
2.82 |
|
2.56 |
4.23 |
|
2.96 |
3.23 |
|
2.49 |
2.56 |
|
3.03 |
4.31 |
|
2.66 |
4.37 |
|
3.00 |
2.40 |
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