Hello everyone,
I am using SAS studio to analyze data to predict risk factors for postpartum depression.
I tried running logestic regression for each potential risk factor but I encountered some issues that I need help with solving:
1) For one of the risk factors (sex discomfort) I was able to get the odds ratio for depression among those who do not have sex discomfort (0). I want to look at those depressed and have ex discomfort (1). How do I change that??
Here is my code:
proc logistic DATA=resJordan desc ;
class "Ppsexdiscomfort"n ;
model depres= "Ppsexdiscomfort"n;
run;
2) Some risk factors have very few positives. For instances only 10 out of 68 depressed mothers have sex discmfort. Is this a problem? and how large should the observations be in order for the logestic regression to be intrpretable in this case?
Thank you
I am using SAS studio to analyze data to predict risk factors for postpartum depression.
I tried running logestic regression for each potential risk factor but I encountered some issues that I need help with solving:
1) For one of the risk factors (sex discomfort) I was able to get the odds ratio for depression among those who do not have sex discomfort (0). I want to look at those depressed and have ex discomfort (1). How do I change that??
Here is my code:
proc logistic DATA=resJordan desc ;
class "Ppsexdiscomfort"n ;
model depres= "Ppsexdiscomfort"n;
run;
2) Some risk factors have very few positives. For instances only 10 out of 68 depressed mothers have sex discmfort. Is this a problem? and how large should the observations be in order for the logestic regression to be intrpretable in this case?
Thank you