Question

Dr. Johnson conducted a study to assess the effect of cigarette smoking on lung cancer. The...

Dr. Johnson conducted a study to assess the effect of cigarette smoking on lung cancer. The study findings showed an association between cigarette smoking and lung cancer, with a reported odds ratio (OR)=1.0. What does this number (1.0) convey about the association between the two variables? (underlie the correct answer).

A. non-smokers were more likely to have lung cancer than smokers

B. non-smokers were less likely to have lung cancer than smokers

C. smokers and non-smokers had an equal chance of developing lung cancer

D. None of the above

0 0
Add a comment Improve this question Transcribed image text
Answer #1

If the odds ratio between two variables is 1, then there is no association between that two variables.

One Variable doesn’t affect the other one.

correct option is: D. None of the above.

Add a comment
Know the answer?
Add Answer to:
Dr. Johnson conducted a study to assess the effect of cigarette smoking on lung cancer. The...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • Lung Cancer & Smoking Case Study A causal relationship between cigarette smoking and lung cancer was...

    Lung Cancer & Smoking Case Study A causal relationship between cigarette smoking and lung cancer was first suspected in the 1920s on the basis of clinical observations. To test this apparent association, numerous epidemiologic studies were undertaken between 1930 and 1960. Two studies were conducted by Richard Doll and Austin Bradford Hill in Great Britain The first was a case-control study begun in 1947 comparing the smoking habits of lung cancer patients with the smoking habits of other patients. The...

  • Lung Cancer & Smoking Case Study A causal relationship between cigarette smoking and lung cancer was first suspected...

    Lung Cancer & Smoking Case Study A causal relationship between cigarette smoking and lung cancer was first suspected in the 1920s on the basis of clinical observations. To test this apparent association, numerous epidemiologic studies were undertaken between 1930 and 1960. Two studies were conducted by Richard Doll and Austin Bradford Hill in Great Britain. The first was a case-control study begun in 1947 comparing the smoking habits of lung cancer patients with the smoking habits of other patients. The...

  • Lung Cancer & Smoking Case Study A causal relationship between cigarette smoking and lung cancer was...

    Lung Cancer & Smoking Case Study A causal relationship between cigarette smoking and lung cancer was first suspected in the 1920s on the basis of clinical observations. To test this apparent association, numerous epidemiologic studies were undertaken between 1930 and 1960. Two studies were conducted by Richard Doll and Austin Bradford Hill in Great Britain The first was a case-control study begun in 1947 over a 4-year period (April 1948-February 1952). Initially, 20 hospitals, and later more, were asked to...

  • In a study of the effects of smoking on lung cancer, 100 men with lung cancer...

    In a study of the effects of smoking on lung cancer, 100 men with lung cancer were compared to 100 men without lung cancer. Among those with lung cancer, 80 had a previous history of smoking. Among the comparison group, 45 had a previous history of smoking. What type of study design was used for this investigation of the association between smoking and lung cancer? Prospective cohort study Retrospective cohort study Case-control study Clinical trial None of the answers listed

  • The following table shows the relationship between cigarette smoking and lung cancer among male cases and...

    The following table shows the relationship between cigarette smoking and lung cancer among male cases and controls. Cases Controls Cigarette smoker 1,350 1,296 Non-Smoker 7 61 Total 1,357 1,357 Table 1. Smoking status before onset of the present illness, lung cancer cases and matched controls with other diseases, Great Britain, 1948-1952. Question 11 (2 points) Calculate the odds of smoking among the cases?

  • In a study to assess the relationship between smoking and CRC in men, Verga Enterprises conducts...

    In a study to assess the relationship between smoking and CRC in men, Verga Enterprises conducts a study wherein 100 smokers and 100 non-smokers were followed for 10 years (all the men were 60 at the start of the study). Ten men who were smokers developed CRC whereas 5 non-smokers developed disease. (a) What makes this a Case Control study design? (b) Complete the 2x2 table. (c) What is the risk of developing CRC among smokers? (d) What is the...

  • In your opinion, which of the below three study design is best to assess the relationship...

    In your opinion, which of the below three study design is best to assess the relationship between smoking and CRC? Why? (6 sentences) No plagiarism please Cross Sectional Study 1. Verga Enterprises is conducting a study to assess the relationship between smoking and colorectal cancer (CRC). In the survey that was conducted, 20 out of 100 non-smokers had CRC, while 40 out of 60 smokers had CRC. (a) What makes this a Cross Sectional study design? This particular case is...

  • 1 pts A cohort study examined the association between smoking and lung cancer after following 400...

    1 pts A cohort study examined the association between smoking and lung cancer after following 400 smokers and 600 non-smokers for 15 years. At the conclusion of the study the investigators found a relative risk 1. How would you interpret this relative risk? Does the Exposure increase, decrease, or does not increase risk of illness?

  • The death rate per 100,000 for lung cancer is 7 among non-smokers and 71 among smokers....

    The death rate per 100,000 for lung cancer is 7 among non-smokers and 71 among smokers. The death rate per 100,000 for coronary thrombosis is 422 among non-smokers and 599 among smokers. The prevalence of smoking in the population is 55%. Determine the following: 1. On the basis of the relative risk and etiologic fractions associated with smoking for lung cancer and coronary thrombosis, which of the following statements is most likely to be correct? A.           Smoking seems much more...

  • The study also provided mortality rates for cardiovascular disease among smokers and non-smokers....

    The study also provided mortality rates for cardiovascular disease among smokers and non-smokers. The following table presents lung cancer mortality data and comparable cardiovascular disease mortality data. Table 2. Mortality rates (per 1,000 person-years), rate ratios, and excess deaths from lung cancer and cardiovascular disease by smoking status, Doll and Hill physician cohort study, Great Britain, 1951-1961. Mortality rate per 1,000 person-years Smokers Non-smokers All Rate ratio Excess deaths Attributable risk per 1,000 person-years smokers 1.23 2.19 percent among 1.30...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT