HomeworkLib
Question

How would you determine whether age is an effect modifier in your study? a. age-stratified OR...

How would you determine whether age is an effect modifier in your study?

a. age-stratified OR are different from CRUDE OR but same as each other

b. age-stratified OR are different from CRUDE

c. age-stratified OR are the same

d. age-stratified OR different from each other

math   Statistics-And-Probability   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

age-stratified OR are different from CRUDE

In this way you determine whether age is an effect modifier in your study...

Hence b is the right answer...

Note-if there is any understanding problem regarding this please feel free to ask via comment box.thank you

0 0
Add a comment
Know the answer?
Add Answer to:
How would you determine whether age is an effect modifier in your study? a. age-stratified OR...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

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

  • Gender was considered a potential confounder and/or effect measure modifier in this study. The data were...

    Gender was considered a potential confounder and/or effect measure modifier in this study. The data were stratified by gender in order to assess these issues. Calculate and interpret the stratum-specific odds ratios among males and females using the following data: Females Heavy Alcohol Consumption Cases Controls Yes 50 50 No 75 150 Males Heavy Alcohol Consumption Cases Controls Yes 300 150 No 50 50 Do you think gender is a confounder in this study? Explain your reasoning. Do you think...

  • Q1. For the following three questions, consider the following risk ratios from a cohort study on ...

    Q1. For the following three questions, consider the following risk ratios from a cohort study on the association between diabetes and glaucoma: Crude: 1.88 Race/ethnicity-adjusted: 1.56 Race/ethnicity-stratified (White participants): 1.49 Race/ethnicity-stratified (Black participants): 1.99 Race/ethnicity-stratified (Asian participants): 1.35 Race/ethnicity-stratified (Hispanic participants): 1.78 a)Race is producing: No confounding Positive confounding Negative confounding b) Race is: A confounder An effect modifier Both a confounder and an effect modifier Neither a confounder nor an effect modifier c) Which is the best single measure...

  • Q1. For the following three questions, consider the following risk ratios from a cohort study on...

    Q1. For the following three questions, consider the following risk ratios from a cohort study on the association between diabetes and glaucoma: Crude: 1.88 Race/ethnicity-adjusted: 1.56 Race/ethnicity-stratified (White participants): 1.49 Race/ethnicity-stratified (Black participants): 1.99 Race/ethnicity-stratified (Asian participants): 1.35 Race/ethnicity-stratified (Hispanic participants): 1.78 a)Race is producing: No confounding Positive confounding Negative confounding b) Race is: A confounder An effect modifier Both a confounder and an effect modifier Neither a confounder nor an effect modifier c) Which is the best single measure...

  • Using direct adjustment with the total study population as your reference group, please calculate the age-standardized...

    Using direct adjustment with the total study population as your reference group, please calculate the age-standardized cumulative incidence rate for the association between hypertension and stroke. You, as an investigator, are interested in the association between hypertension and stroke and collect the following data. Hypertension: 368 (stroke), 752 (no stroke) Non-Hypertensive   556 (stroke), 2,324(no stroke) a) Calculate the crude appropriate measure of association for the relationship between hypertension and stroke and interpret your answer. After completing the crude analysis, you...

  • A study is being conducted to determine whether drivers at or over the age of 70...

    A study is being conducted to determine whether drivers at or over the age of 70 have longer reaction times in a simple driving task than drivers aged less than 70. A SRS of 50 drivers at or over age 70, and another SRS of 60 drivers under age 70 is selected. Each driver’s reaction time to a specific driving activity was measured in a laboratory, and the reaction times in minutes were recorded. The sample mean and sample standard...

  • A. You conduct a study on family history of diabetes and pulmonary hypertension. Since you are...

    A. You conduct a study on family history of diabetes and pulmonary hypertension. Since you are concerned about the presence of a third variable - personal history of diabetes, you run a stratified analysis. From a previous analysis, you know that the crude odds ratio is 3.4. What are the stratum-specific ORs & 95% CIs when stratified on personal history of diabetes? Be sure to jot down the stratum-specific ORs and the confidence intervals for each stratum.   B. Without hypothesizing...

  • One study was conducted to determine whether the average age of a mobile phone is normally...

    One study was conducted to determine whether the average age of a mobile phone is normally distributed with an estimated 5-year average population and a standard deviation of 1.4 years. If a random sample of 18 cellphones is taken. a. Determine the average age of mobile phones more than 5 years 6 months. b. Determine the average age of the mobile phone between 5.5 to 6 years.

  • You decide to study the effect of GRE preparatory course on GRE score. Describe, in detail,...

    You decide to study the effect of GRE preparatory course on GRE score. Describe, in detail, how you will design your study, how you will collect data, and how you are going to statistically test whether the GRE course had an effect on GRE score. Be as specific as you can about your hypotheses. How would you, if at all, change your study if you decided to study the effect of the GRE preparatory course on graduate school admission instead?...

  • A researcher wishes to determine whether there is a difference in the average age of middle...

    A researcher wishes to determine whether there is a difference in the average age of middle school, high school, and college teachers. Teachers are randomly selected. Their ages are recorded below. Test the hypothesis that there is no difference in the average age of each group. Use State the null and alternative hypotheses. Group of answer choices H0: μ1 = μ2 = μ3 HA: all the means are the same H0: μ1 = μ2 HA: μ3 is different H0: μ1...

  • Dr. Freedom conducted an experiment to determine whether varying the sound level would       effect participant’s...

    Dr. Freedom conducted an experiment to determine whether varying the sound level would       effect participant’s evaluation of a video. Participants were randomly assigned to watch the       same video with the sound level set at high, medium, or low.   In this example, the       independent variable is             Select one: a. the evaluation of the video. b. the sound level of the video. c. the video. d. high, medium, and low.

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