Blessings Hendrina Likoswe

3 Questions 8 Answers 0 Followers

Questions related from Blessings Hendrina Likoswe

How do I calculate confidence interval of regression generated limits of agreement?

I run a regression for bland-altman analysis and generated the model D=a+bM, where D is the differences between the methods, and M is the mean of the methods. I used these values to generate...

09 September 2019 6,623 3 View

How do I input log transformed data when adjusting biomarkers of inflammation?

I am trying to adjust serum zinc data for inflammation using the equation below (suggested by brinda-nutrition.org) 𝐴𝑑𝑗𝑢𝑠𝑡𝑒𝑑 𝑠𝑒𝑟𝑢𝑚 𝑧𝑖𝑛𝑐 = 𝑢𝑛𝑎𝑑𝑗𝑢𝑠𝑡𝑒𝑑 𝑠𝑒𝑟𝑢𝑚 𝑧𝑖𝑛𝑐 − 𝛽1(𝐶𝑅𝑃𝑜𝑏𝑠 − 𝐶𝑅𝑃𝑟𝑒𝑓) − 𝛽2(𝐴𝐺𝑃𝑜𝑏𝑠...

07 July 2019 6,674 5 View

Why do I get a positive coefficient in a multiple linear regression but a negative one when I run the models separately?

I am trying to run a multiple linear regression with two independent factors. These are biological markers that negatively influence the level dependent factor so when running the model, I expect...

06 June 2019 5,614 7 View