I would just like to check on the meaning of the cvd_dthdt variable. In the label it references time till first instance of CVD; however, in the description, it indicates it is time until death from CVD. Which one is correct?
Thank you in advance!
Sorry for the confusion. The "time until death" is the correct definition. We will update this an upcoming release for these variables:
Thanks for that! I believe then that there is no variable for time until first instance of CVD?
That's correct. There are individual "time until X" variables like MI, CABG, PTCA, etc. I think the CVD death variable is a composite that the dataset owners created from the other "time until fatal X event" variables, so you could probably create your own "time until first instance of CVD" from some of the other CVD Outcomes variables.
Some information here from the SHHS authors: https://sleepdata.org/datasets/shhs/files/documentation?f=SHHS_CVD_Outcomes_Protocol.pdf