Recent content by Tessa13

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    Interpretation binary logistic regression in SPSS

    Thank you for your response! I know I do not meet the rule of thumb of one predictor for every 10 events. However, my supervisor still asked me to perform binary logistic regression, and to just mention in the limitations that very few events happened. Do you know if I these high p values are...
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    Interpretation binary logistic regression in SPSS

    Hello! I am doing research on colorectal cancer for my master's degree in medicine. I have a total of 177 patients, out of which 5 have residual malignant disease after resection (primary endpoint). Due to the small number of events I want to perform a binary logistic regression analysis. I...
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    Combining variables; greatest number becomes new variable

    Yes I was trying to use that window, but I cannot figure out to do this using Transform > Compute. I have now done it with this syntax: COMPUTE max.diameter.poliep.combi=MAX(Grootte_poliep,Poliepkarakteristieken_grootte). EXECUTE. It seems to have worked!
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    Combining variables; greatest number becomes new variable

    I am doing research on colorectal polyps. In my database the size of the polyps is measured both in the pathology report and the endoscopy report; those are 2 different variables. I want to combine these two into one variable, where the greatest reported size out of the two separate variables...
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    How do I combine variables in SPSS to create a new variable?

    Thank you so much! You have helped me a lot :)
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    How do I combine variables in SPSS to create a new variable?

    Dear Karabiner, Thank you for your response! It is a very large number of cases, so sorting by hand isn't an option. My variables are numeric (as in variable A can be 0 or 1 and variable B can be 0, 1 or 2).
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    How do I combine variables in SPSS to create a new variable?

    I want to create 6 groups in SPSS, originating from 2 groups but I don't know how to do this. I have one variable A which is binary (0.1-1 millimetre or >1 millimetre) and another variable B which has 3 possible values (3 treatment strategies for cancer: wait-and-see, polypectomy or surgery). I...