I am trying to perform an analysis on a dataset that contains information on patient values (r2-r4) from 4 different time points (denoted by the variable fu). These r variables each identify a different body part and the values are electrical signal. Patients are denoted by var recordid. I am trying to perform ANOVA to compare the means between two groups of patients (identified by variable innervation) of a body part over the period of time. I am aware that I should be using the repeated measure ANOVA but am not quite sure how to incorporate comparing the two groups of innervated vs non-innervated patients. Is this supposed to be nested? I have read the ANOVA help file but am not entirely sure based on the examples.
Any help is greatly appreciated.
Code:
* Example generated by -dataex-. For more info, type help dataex clear input int recordid byte innervation float(r2 r3 r4) str5 j float fu 29 1 26.6 37.7 26.5 "_12mo" 4 29 1 96.5 100 42.2 "_6mo" 3 29 1 100 100 74.3 "_3mo" 2 30 0 36.3 100 3.9 "_3mo" 2 31 1 64.2 93.3 17.4 "_6wk" 1 31 1 12.7 75.4 20.6 "_3mo" 2 32 0 95.8 98.2 61.2 "_6wk" 1 33 0 75.8 99.9 98.7 "_6wk" 1 33 0 100 100 84 "_3mo" 2 33 0 100 100 100 "_12mo" 4 end
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