Hi,
Please can you help me to calculate the 95%CI for the difference in proportions from logistic regression?
This is the example
webuse mheart1s20
mi describe
prtest attack, by(female)
logit attack i.female, or
margins i.female, pwcompare
mi estimate, or: logit attack i.female
As you can see using margins after logistic I can obtain the difference and confidence interval in line with the prtest (difference in proportions)
I know how to calculate the proportions of attack in males and females from odds and odds ratios of the output. However, I don't know how to use solely the logit output to obtain the confidence intervals for the difference in proportions.
I am using multiple imputation and multiple imputation does not allow me to use margins, so I cannot predict the confidence interval for the difference in proportions.
So, how can I use the output of logistic to obtain the confidence intervals in the difference of proportions scale for the following output
mi estimate, or: logit attack i.female
------------------------------------------------------------------------------
attack | Odds Ratio Std. Err. t P>|t| [95% Conf. Interval]
-------------+----------------------------------------------------------------
1.female | .996337 .3745198 -0.01 0.992 .4769165 2.08147
_cons | .8125 .1516913 -1.11 0.266 .5635164 1.171494
------------------------------------------------------------------------------
Thank you in advance for any help.
Andrew
Please can you help me to calculate the 95%CI for the difference in proportions from logistic regression?
This is the example
webuse mheart1s20
mi describe
prtest attack, by(female)
logit attack i.female, or
margins i.female, pwcompare
mi estimate, or: logit attack i.female
As you can see using margins after logistic I can obtain the difference and confidence interval in line with the prtest (difference in proportions)
I know how to calculate the proportions of attack in males and females from odds and odds ratios of the output. However, I don't know how to use solely the logit output to obtain the confidence intervals for the difference in proportions.
I am using multiple imputation and multiple imputation does not allow me to use margins, so I cannot predict the confidence interval for the difference in proportions.
So, how can I use the output of logistic to obtain the confidence intervals in the difference of proportions scale for the following output
mi estimate, or: logit attack i.female
------------------------------------------------------------------------------
attack | Odds Ratio Std. Err. t P>|t| [95% Conf. Interval]
-------------+----------------------------------------------------------------
1.female | .996337 .3745198 -0.01 0.992 .4769165 2.08147
_cons | .8125 .1516913 -1.11 0.266 .5635164 1.171494
------------------------------------------------------------------------------
Thank you in advance for any help.
Andrew