Dear all,
I have a population of 2000 patients - all of whom have had a stroke. I have calculated the ORs of the stroke subtypes (there are 7 subtypes) according the presence or absence of kidney disease. However, some of the results don't really make sense and kidney disease appears to be protective against certain stroke subtypes (which isn't true) and increases the risk of others. I think that these unexpected results are likely as a result of using case-case comparisons (i.e. stroke subtype 1 vs all other subtypes) as opposed to case-control comparisons but unfortunately we don't have a suitable control population. Would anyone have any suggestions for a way for modelling or correcting for this?
BW,
Marie
I have a population of 2000 patients - all of whom have had a stroke. I have calculated the ORs of the stroke subtypes (there are 7 subtypes) according the presence or absence of kidney disease. However, some of the results don't really make sense and kidney disease appears to be protective against certain stroke subtypes (which isn't true) and increases the risk of others. I think that these unexpected results are likely as a result of using case-case comparisons (i.e. stroke subtype 1 vs all other subtypes) as opposed to case-control comparisons but unfortunately we don't have a suitable control population. Would anyone have any suggestions for a way for modelling or correcting for this?
BW,
Marie