SPSS Statistics

Hey, 

I need to match subjects into cases and controls based on age and gender but also diameter. Cases should have a diameter above a specific value and controls below that value. How do I manage to match cases and controls based on diameter as well as age and gender? I am grateful for detailed answers and step by step explanation as my knowledge in spss is limited. 

Thanks in advance! 

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Adam Ad
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Hey, 

I need to match subjects into cases and controls based on age and gender but also diameter. Cases should have a diameter above a specific value and controls below that value. How do I manage to match cases and controls based on diameter as well as age and gender? I am grateful for detailed answers and step by step explanation as my knowledge in spss is limited. 

Thanks in advance! 

------------------------------
Adam Ad
------------------------------

Thanks alot for the answer! 

I tried to follow your steps and perform case-control matching by choosing Data>Case-control matching. Then I chose age and gender as "Variables to Match on". I chose Subject ID as Match ID.

I chose Case-control as "Group indicator" (I sorted cases and controls as 1 for cases and 0 for controls) then I entered 1 0 in "Tolerance factor" square. I entered random names in Match ID Variable and Name for matchgroup. When I ran the command I got error message stating "[errLevel 25] Duplicate variable name." 

I tried to run the command again without entering a tolerande factor but then I got very weird matching in the new variable column with matches like this one "3846568066704177700.00" which I don't understand what It refers to. In the output viewer it says I got 0 matches. 

I have spent hours trying to match I hope you can help me figure out how to finally match the cases and controls to be able to perform the analysis. 

Thanks in advance.

Hey, 

I need to match subjects into cases and controls based on age and gender but also diameter. Cases should have a diameter above a specific value and controls below that value. How do I manage to match cases and controls based on diameter as well as age and gender? I am grateful for detailed answers and step by step explanation as my knowledge in spss is limited. 

Thanks in advance! 

------------------------------
Adam Ad
------------------------------

Thanks alot for the answer! 

I tried to follow your steps and perform case-control matching by choosing Data>Case-control matching. Then I chose age and gender as "Variables to Match on". I chose Subject ID as Match ID.

I chose Case-control as "Group indicator" (I sorted cases and controls as 1 for cases and 0 for controls) then I entered 1 0 in "Tolerance factor" square. I entered random names in Match ID Variable and Name for matchgroup. When I ran the command I got error message stating "[errLevel 25] Duplicate variable name." 

I tried to run the command again without entering a tolerande factor but then I got very weird matching in the new variable column with matches like this one "3846568066704177700.00" which I don't understand what It refers to. In the output viewer it says I got 0 matches. 

I have spent hours trying to match I hope you can help me figure out how to finally match the cases and controls to be able to perform the analysis. 

Thanks in advance.

Hey, 

I need to match subjects into cases and controls based on age and gender but also diameter. Cases should have a diameter above a specific value and controls below that value. How do I manage to match cases and controls based on diameter as well as age and gender? I am grateful for detailed answers and step by step explanation as my knowledge in spss is limited. 

Thanks in advance! 

------------------------------
Adam Ad
------------------------------

Thanks alot for the answer! I was finally able to match the cases and controls. Yes you right! I listed it correctly when I ran the matching. 

I have matched 1 case with 1 control and I had 5 unmatched cases with the 1 year tolerance factor for age. Now I want to calculate the odds ratio for cases and controls for different risk factors and I wonder how to do it for matched cases and controls for all the 100 subjects (50 cases and 50 controls)? Should I calculate the odds ration for each matched pair or should I do it on group level by calculating the odds ration for all the cases and controls? Now that I have matched pairs It seems as I should count the odds ration for each matched pair but I have no idea if it's correct to do so and how to calculate it? 

Thanks alot in advance for answer! 

Thanks alot for the answer! 

I tried to follow your steps and perform case-control matching by choosing Data>Case-control matching. Then I chose age and gender as "Variables to Match on". I chose Subject ID as Match ID.

I chose Case-control as "Group indicator" (I sorted cases and controls as 1 for cases and 0 for controls) then I entered 1 0 in "Tolerance factor" square. I entered random names in Match ID Variable and Name for matchgroup. When I ran the command I got error message stating "[errLevel 25] Duplicate variable name." 

I tried to run the command again without entering a tolerande factor but then I got very weird matching in the new variable column with matches like this one "3846568066704177700.00" which I don't understand what It refers to. In the output viewer it says I got 0 matches. 

I have spent hours trying to match I hope you can help me figure out how to finally match the cases and controls to be able to perform the analysis. 

Thanks in advance.

Hey, 

I need to match subjects into cases and controls based on age and gender but also diameter. Cases should have a diameter above a specific value and controls below that value. How do I manage to match cases and controls based on diameter as well as age and gender? I am grateful for detailed answers and step by step explanation as my knowledge in spss is limited. 

Thanks in advance! 

------------------------------
Adam Ad
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