You would like to do a study of the association between multivitamin use and multiple myeloma. You are worried about confounding by socioeconomic status. There are a number of techniques that you could use to control for this confounding. Name one of these techniques and explain in a sentence or two how it works.

Cancer patients who want to use CAM should talk with their doctor or nurse. This is important because things that seem safe could be harmful or even interfere with cancer treatment. It's also a good idea to learn if the therapy they are thinking about has been proven to do what it claims to do. What types of CAM therapies might help the patient:1. Reduce stress and anxiety?2. Feel less tired?3. Deal with cancer symptoms and side effects, such as pain or nausea? Cancer patients who want to use CAM should talk with their doctor or nurse. This is important because things that seem safe could be harmful or even interfere with cancer treatment. It's also a good idea to learn if the therapy they are thinking about has been proven to do what it claims to do. What types of CAM therapies might help the patient:1. Reduce stress and anxiety?2. Feel less tired?3. Deal with cancer symptoms and side effects, such as pain or nausea?

Which of the following groups is most likely to produce anti-Fya after a transfusion of 6 units of type specific red blood cells? A. persons of Northern European descent B. persons living in the Basque region of northeastern Spain C. persons of African descent D. persons of Asian descent

Out of these associations between a potential exposure (risk factor) and an outcome (health condition or disease), identify the one that is most likely to be causal based on the "strength" of the association. Assume that you no nothing else about the factors and/or the outcomes. Please note: the values of some associations are hypothetical/imaginary, the associations are plausible   a. A number of chemicals in tobacco products have been shown to induce cancers in laboratory settings   b. Men employed in occupations requiring them to sweep chimneys with tars and/or mineral oils have been shown to have 200 times risk of dying from scrotal cancer compared with men not engaged in such occupations.   c. Those who regularly engage in moderate to high intensity physical activity are half as likely to suffer a premature cardiac event compared with those who do not exercise at all.   d. Adults who frequently experience inadequate and/or poor quality sleep at night are…