That's great, thank you very much!
Thanks for your response. Yes apologies, I meant SHHS. So does this mean those with the same value (e.g 200080) for "nsrrid" in visits 1 and 2 are the same person?
Regarding the Cleveland Family Survey, I have not yet requested access to the data and before doing so was wondering if the Survey contains panel data, i.e. are the same individuals followed up and data logged over different time periods? The summary alludes to this but if so, are the individuals IDed over time so that you can follow their data over time? I ask because I was hoping to do so with the NHHS data I have downloaded but they clearly de-identified the data in that case.
Hope that makes sense, many thanks in advance.