| Survival analysis using Cox proportional hazard regression [message #21635] |
Tue, 01 December 2020 17:36  |
Ugonna
Messages: 26
Registered: June 2020
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Hello everyone,
I need to carry out survival analysis using Cox proportional hazard regression on the kr file of Nigeria DHS for my study on under-5 mortality.
I have identified that I need these variables for it:
b3 - date of birth of child
b5 - child is alive (survival status)
b7 - age at death in months
v008 - date of interview
b19 - age of child in months
Please how do I go about preparing the data for analysis?
-Do I need to reshape the data from wide to long? If I do, how do I do that please?
-I have combined 'caseid' and 'bidx' into one variable to generate a unique ID variable. Did I do the right thing here?
-Also how do I construct the time of death/time to event/time variable?
Will really appreciate your kind assistance.
Thank you.
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