I have been looking through several of the previously asked questions on the topic and I am still having a bit of trouble putting together a code that would work with my data set. I am working on calculating the incidence rate for obesity and have 6 separate time points spread out over about 60 years. I know for example it should be set up in such a way that it is written BMI_Timepoint1 > 30 = 1 and so on. (defining obesity as over 30). Any tips on where to get started? I am a new learner to SAS some every little bit of help is appreciated. Variables I have data for: BMI, age, ID#, birthdays, etc
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