Hello, I'm currently having this problem of survival analysis...
Got a database of 200 subjects which will be followed for 12 months; people need to return for a consultation on 1month, 6month and eventually 12 month after surgery.
My primary interest is whether the artery is still open after surgery. (taking into account the adverse events & death due to surgery??!!)...
but how can I perform this and analyse this in SPSS. I mean, which data do I need and is KM analysis the optimal analysis? Can i use Chi-square or somehting else? (if not, why?)
(Another problem is that my data is incomplete, there are still patients who have to return for a visit on 1 month and 6 month. I want to perform analysis untill 6 month)
e.g. calculation: Smokers and non-smokers --> we could expect that in smokers the artery will be occluded sooner than in non-smokers. etc
(my study is similar to the following article: Venkatesh Ramaiah et al., Midterm Outcomes From the TALON Registry: Treating Peripherals With SilverHawk: Outcomes Collection. J. Endovasc Ther 2006;13:592-602)
Hope anywone can help me! thanks