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Position variables in SHHS

Hi,

I would like to know if there are any variables in SHHS about people body position during the polysomnography which represents the percentage of sleep time that person has been in a specifc position like supine.

Thank you very much for your assistance

Regards

Yes, that sort of information exists in the dataset. You can browse variables here: https://sleepdata.org/datasets/shhs/variables

E.g., for position: https://sleepdata.org/datasets/shhs/variables?search=supine