Posted: November 19th, 2016
Should Test “A” or Test “B” be recommended for screening emergency department patients for HIV?
Sensitivity, Specificity, Odds Ratio, Relative Risks, and Survival Analysis
Purpose: You will be able to demonstrate a general understanding of interpreting statistical output to evaluate sensitivity and specificity, odds ratios, relative risks, and survival analysis.
Instructions: Answer each item on this worksheet below and then upload this worksheet under the ASSIGNMENTS section in blackboard.
For Questions 1-6: An emergency department received a grant from the local public health department to offer rapid HIV testing for all patients 14-28 years old regardless the patients’ chief complaints. A pilot study was conducted using two different rapid HIV tests. The following charts detail the findings for each test.
| TEST “A” RESULTS | TEST “B” RESULTS | |||||
| Confirmed HIV positive | Confirmed HIV negative | Confirmed HIV positive | Confirmed HIV negative | |||
| Test A: positive | 13 | 3 | Test B: positive | 10 | 5 | |
| Test A: negative | 2 | 17 | Test B: negative | 2 | 20 | |
- What was the sensitivity for Test “A”? (5 points)
- What was the specificity for Test “A”? (5 points)
- What was the sensitivity for Test “B”? (5 points)
- What was the specificity for Test “B”? (5 points)
- Should Test “A” or Test “B” be recommended for screening emergency department patients for HIV? (5 points)
Provide a rationale for you
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