Purchase Solution

Paclitaxel Coated Angioplasty Balloons Implanted in Leg Arteries

Not what you're looking for?

Ask Custom Question

See attached file.

2. SATA or other calculators may be used. Use the following data table comparing a control group to a group with paclitaxel coated angioplasty balloons implanted in leg arteries:
paclitaxel-coated
Variables control group balloons group
(n = 54) (n = 48)
Baseline Rutherford stage 3.1 ± 0.8 3.4 ± 0.8
Degree of stenosis 91 ± 7 89 ± 8
Target lesion length (cm) 7.4 ± 6.7 7.5 ± 6.2
Target lesion diameter (cm) 4.7 ± 0.6 5.0 ± 0.7
No. of runoff vesicles 2.1 ± 0.8 1.8 ± 0.8

NOTE. Values are mean ± SD.
Data taken from Tepe et al. (2008) N Eng J Med. 358(7):689-699.

a. Perform the F test on all five variables listed (comparing control group to balloons group). State the p-value and conclusions that should include whether to use the equal variance approach or the unequal variance approach.

b. Perform hypothesis tests on all five variables (again comparing one group to the other). State the null hypothesis for each. List the p-value and a specific conclusion.

c. Calculate by hand the Satterthwaite's degrees of freedom for target lesion diameter (the fourth variable). Show your steps. Your answer should be the exact number that would be used in a table to look up the p-value in the subsequent hypothesis test.

d. Construct a 99% confidence interval for degree of stenosis, balloons group.

Attachments
Purchase this Solution
Solution Summary

The solution discusses hypothesis testing regarding paclitaxel coated angioplasty balloons in leg arteries.

Purchase this Solution
Free BrainMass Quizzes
Know Your Statistical Concepts

Each question is a choice-summary multiple choice question that presents you with a statistical concept and then 4 numbered statements. You must decide which (if any) of the numbered statements is/are true as they relate to the statistical concept.

Terms and Definitions for Statistics

This quiz covers basic terms and definitions of statistics.

Measures of Central Tendency

This quiz evaluates the students understanding of the measures of central tendency seen in statistics. This quiz is specifically designed to incorporate the measures of central tendency as they relate to psychological research.

Measures of Central Tendency

Tests knowledge of the three main measures of central tendency, including some simple calculation questions.

View More Free Quizzes
Related BrainMass Solutions

  • Cardiovascular System

    EXAMPLE THREE: What is balloon angioplasty? Balloon angioplasty of the coronary artery, or percutaneous transluminal coronary angioplasty (PTCA), was introduced in the late 1970's.

  • Patient education on heart disease

    -Angioplasty -analogy: like "snaking out the pipes in a house" -therefore, after the angioplasty, you have to stop stretching the hose, pouring grease down the drain, etc. or it will have to be done again *note: This is how I explain things

  • TIA clinical case

    It results in transient or brief period of neurological symptoms, such as in this case, leg weakness.

  • Patient Pathophysiological Changes

    Other symptoms include those within the patient's leg wherein leg pain as referenced in your posting is common because the arteries responsible for delivering blood throughout the person's legs are clogged and blocked. 3) Discuss the treatments for

  • Interpreting Medical Terminology in Patient Brochure

    Because you had surgery to open the clogged blood vessels in your heart and remove plaque in your arteries, your affected artery has been opened to allow improved blood flow.

  • Case Study: Choosing between organ donation recipients

    Treatments such as angioplasty (opening the blood vessels by passing a tube into the arteries) and bypass surgery (connecting new blood vessels that go around the clogged ones) can correct the problem, but they are not a total cure.

  • Mammalian Blood Circulation

    This website has an animation of the heart in action: http://www.pbs.org/wgbh/nova/heart/heartmap.html As well, keep in mind the role of capillaries. Capillaries are tiny blood vessels that bridge the gap between arteries and veins.

  • Cameron Balloon's business process and virtual simulation

    When you are finished think about what you have learned about Cameron Balloons in conjunction with this module's readings. Then, in 2-3 pages, address the following questions: What did you learn about Cameron Balloons' business process?

  • Working with a helium balloon.

    Research has shown that after Latex balloons are launched, they often rise to an altitude of about five miles where they begin to freeze in the -50 degree Fahrenheit cold.

View More Related Solutions