How to analyze matched case-control data in spss -


i using spss 22 mac.

i have dataset in 1 of variables id of matched control case.

the data looks kinda this:

id         case     animal       fruit        matched control    outcome ___________________________________________________________________________ 1          yes      horse        apple         4                 died 2          no       elefant      orange                          survived 3          yes      horse        banana        5                 survived 4          no       horse        apple                           died 5          no       shark        apple                           died

where case 1 (horse, apple) matched control 4 (horse, apple) , case 3 (horse, banana) id matched control 5 (shark, apple) , control 2 should excluded analysis because not referenced case.

i to:

  1. create table baseline characteristics of cases , controls:

                             case yes (n=2)          case no (n=2) _______________________________________________________________ animal - horse (%)       2 (100%)                1 (50%) fruit - apple (%)        1 (50%)                 2 (100%)

  2. perform odds , risk ratios of outcome variable in cases vs. controls

note eventhough data avaiable id 2, doesnt included in analysis because doesnt have matched control, therefore it's not case.

how can achieve spss?

if use fuzzy extension command create case-control matches, can create dataset of matched pairs. otherwise join selected controls case data using match files table join. (you can if cases , controls in same dataset.)


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