This topic contains a solution. Click here to go to the answer

Author Question: The nurse researches the relationship between frequent ingestion of fast foods and obesity. The ... (Read 63 times)

jilianpiloj

  • Hero Member
  • *****
  • Posts: 521
The nurse researches the relationship between frequent ingestion of fast foods and obesity.
 
  The nurse finds that in a population that eats at least five fast food meals per week on average, the incidence rate of people who are obese is 735/1,000 population. In the population that eats only one fast food meal per week on average, the incidence rate of people who are obese is 245/1,000 population. Based on these findings, what is the relative risk of developing obesity in those who eat at least five fast food meals per week?
  A) 0.3
  B) 0.7
  C) 1
  D) 3

Question 2

Advantages of a case-control study include: (Select all that apply).
 
  A) Allows for the examination of multiple exposures for a single outcome
  B) Allows for the direct measure of the incidence of a disease
  C) Is generally quicker and less expensive to conduct than cohort studies
  D) Appropriate for studying rare exposures
  E) Requires fewer case-subjects



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

mmpiza

  • Sr. Member
  • ****
  • Posts: 354
Answer to Question 1

Ans: D
Feedback:
Relative risk (RR) is defined as the ratio of disease incidence (or death) in an exposed population to that in an unexposed population. The assumption is that the underlying risk without the exposure is the same in both groups. Relative risk is a ratio ranging from 0 to infinity that indicates the strength of the association between the risk factor and the outcome. It is calculated by dividing the risk in the group exposed to a risk factor by the risk in the unexposed group. In this case, we perform the following calculation: 735/245 = 3. An RR significantly greater than 1 (statistically) indicates that the exposure is associated with increased risk of disease. An RR significantly less than 1 (statistically) indicates that the exposure is associated with decreased risk of disease; that is, the exposure is protective. An RR not significantly different from 1 (statistically) indicates that there is no association between the exposure and the risk of disease.

Answer to Question 2

Ans: A, C, E
Feedback:
Case-control studies have several advantages: they allow for the examination of multiple exposures for a single outcome, are suitable for studying rare diseases and those with long latency periods, require fewer case-subjects, and generally are quicker and less expensive to conduct than cohort studies, making them well suited for an outbreak investigation. They have several disadvantages: they are not appropriate for studying rare exposures, they are subject to bias because of the method used to select controls, and they do not allow the direct measure of the incidence of disease.




jilianpiloj

  • Member
  • Posts: 521
Reply 2 on: Jul 8, 2018
Excellent


JCABRERA33

  • Member
  • Posts: 344
Reply 3 on: Yesterday
Wow, this really help

 

Did you know?

There are actually 60 minerals, 16 vitamins, 12 essential amino acids, and three essential fatty acids that your body needs every day.

Did you know?

Green tea is able to stop the scent of garlic or onion from causing bad breath.

Did you know?

Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

Did you know?

In inpatient settings, adverse drug events account for an estimated one in three of all hospital adverse events. They affect approximately 2 million hospital stays every year, and prolong hospital stays by between one and five days.

Did you know?

A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.

For a complete list of videos, visit our video library