Sunday
October 26, 2014

Homework Help: Epidemiology

Posted by Dianna on Monday, January 10, 2011 at 12:13am.

Indicate how the bias would affect the measure of association. Would it be under estimated, or over estimated or unchanged.
Persons diagnosed as HIV positive or negative were interviewed about their number of lifetime sexual partners. The interview occurred after they were told their HIV status.
2. A cohort study looked at the association of exposure to PCBs in the workplace and the occurrence of cancer over 20 years. At the 10-year follow up, 15% of the original participants could not be located to assess their disease status.
3. In a clinical trial of a new drug, the intervention group reviewed the medicine and outcomes were assessed by a doctor working for the pharmaceutical company. The placebo group received the placebo and outcomes were assessed by a doctor from the local community hospital.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Epidemiology - How the bias would affect the measure of association. Would it be...
accounting - How do i calculate this problem. An asset was purchased for $150,...
Straight-line Depreciation - Please how do i calculate this problem. An asset ...
4th grade math help! - Melvin estimated 645 + 322 by adding 600 + 300. Is his ...
English - The following sentence indicates what kind of bias: The best art can ...
accounting - A new inventory management system for ABC Company could be ...
Epidemiology - Design the appropriate 2x2 table, calculate and interpret the ...
Epidemiology - Can anyone answer this question? The prevalence of undetected ...
MATH VERY URRRGENT!!!!!!!!!!!!! - 1. What is the term for data that are grouped ...
Math for Ms. Sue please! Last math questions! - 1. What is the term for data ...

Search
Members