NSRR staff
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I ran this thread and my response by the STAGES team - they agreed with my response. I see that you have access to some other dataset (e.g., SHHS, MrOS) that were scored in Compumedics Profusion, which exports 30-second staging for the entire recording duration. Not all PSG collection/scoring systems will handle annotations in the same manner, as we are seeing here between the STAGES sites, which used a handful of different PSG systems.
Thanks for raising this question. We're happy you've found the NSRR useful.
My suspicion is that the BOGN site's sleep system "clips" the end of the annotations at the time of export. I opened up ~10 EDF/CSV pairs and found the following:
I will run this by a couple other folks on the NSRR team to see if they have any other suggestions. I may also reach out to the STAGES data submitters to see if they know more about the BOGN annotation export procedures.
If you find any recording pairs that don't meet the criteria I mentioned above, please bring those to our attention!
Attesting to the security portion means you will store the data in a secure manner, e.g., on a password-protected computer/drive, in a secure location (e.g. locked office, home).
Thanks for checking out the site. We look forward to reviewing your data request!
Thanks - you are correct about this being an error in the data dictionary. We have it slated for fixing in the next release (https://github.com/nsrr/mesa-data-dictionary/issues/21).
You are correct about 6: Rotating shifts and 7: Do not work.
We appreciate your diligence in exploring the data. We hope you have found the site useful!
Sorry, I'm not aware of anything. I don't think there have been any publications/papers out from the STAGES data creators/submitters yet. My guess for the SRBD dataset is that these were computed/tallied from the available PSG scoring annotations, i.e. the CSV files contained in https://sleepdata.org/datasets/stages/files/original/STAGES%20PSGs
Hi,
Thanks for checking out the site. Unfortunately we did not receive this information. Last I heard (in 2020) the MNC data submitters were working on collecting additional demographic data from the participating cohorts, but I haven't had any updates from them since and don't see any new files on their public Box share. This is a limitation of the MNC dataset.
Mike
You have an approved data request for STAGES, so after logging into the site you can download access-restricted files through your web browser here: https://sleepdata.org/datasets/stages/files/original
The "SRBDVariables" file (here) contains summary information from the clinical sleep scoring. There was a brief discussion about that file in this other forum thread.
Thansk for using the site!
Compumedics Profusion does not output this link (e.g. Hypopnea X is linked to SpO2 Desaturation Y) in the XML annotations. Users will need to re-imagine/re-generate these links if that level of detail is required.
Page 17 of this MESA guide has an overview of how events were scored -- https://sleepdata.org/datasets/mesa/files/documentation/MESA_Sleep_Data_Documentation_Guide.pdf
My understanding is that a desat threshold was not used at the time of scoring, i.e. apneas could have been scored with no associated desaturation. The Profusion software automatically links apneas/hypopneas with desats/arousals when outputting the PSG report, which subsequently gives us a breakdown of event type at different threshold levels, and enables us to create AHIs at different thresholds (e.g. AHI3, AHI4).
https://sleepdata.org/datasets/chat/variables/arm