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The ORP variables are in the eeg-biomarkers dataset (not the main shhs1 dataset), have you looked there?
https://sleepdata.org/datasets/shhs/files/datasets/eeg-biomarkers
Thanks for using the site!
Here is some related reading - EEG polarity issues in the NSRR, by Shaun Purcell and Michael Prerau (Apr 2019)
Source: https://zzz.bwh.harvard.edu/luna/vignettes/
No, I don't believe respiratory rate was output from SHHS (or other studies scored in Compumedics Profusion). Perhaps it could be computed from the raw EDF signal.
Are you referring to the MESA dataset (https://sleepdata.org/datasets/mesa/)? Blood pressure data were not shared with NSRR. They can be requested through the MESA Coordinating Center (https://mesa-nhlbi.org/).
The SHHS polysomnography scoring annotation files are located here: https://sleepdata.org/datasets/shhs/files/polysomnography/annotations-events-profusion
Thanks for checking out the site. I think you are referencing this old forum thread: https://sleepdata.org/forum/o2-desat-events-for-odi-calculation/
ndes*ph/slptime would be the correct way to calculate ODI, however the numerator may inadvertently include desaturations in wake time that shouldn't be included in the calculation. A better way to calculate may be to use the XML annotation files and then identifying SpO2 Desaturations that occurred strictly in sleep epochs.
Thanks for checking out the site. Here is the ANSWERS primary citation: https://pubmed.ncbi.nlm.nih.gov/35389330/
Thanks for using the site.
The NSRR gem download will occur in your current folder. By default the Command Prompt typically opens to a user folder, I think, e.g. c:\Users\ABC123\
Could you try switching to your D: at the Command Prompt? You could do this by typing "D:" at the Command Prompt. The discussion in this article may be helpful: https://stackoverflow.com/questions/17753986/how-to-change-directory-using-windows-command-line
Thanks for your interest in the site!
From https://sleepdata.org/datasets/mesa
Between 2010-2012, 2,237 participants also were enrolled in a Sleep Exam (MESA Sleep) which included full overnight unattended polysomnography, 7-day wrist-worn actigraphy, and a sleep questionnaire. The objectives of the sleep study are to understand how variations in sleep and sleep disorders vary across gender and ethnic groups and relate to measures of subclinical atherosclerosis.
The home sleep recordings included Plethysmography (https://sleepdata.org/datasets/mesa/pages/equipment)
Thanks for checking in. We are not sharing annotations for HeartBEAT at the moment - there's a note in the changelog here: https://sleepdata.org/datasets/heartbeat/pages/polysomnography-introduction.md
The annotations did not include a binary sleep/wake estimate based on available (non-EEG) signals.
As to your first questions, the sleep studies were all home sleep tests (Type III). The sleep studies and blood draws occurred weeks apart at baseline - the sleep study was done after consent to confirm eligibility and then the baseline visit (where the blood draw occurred) was scheduled soon after. At follow-up it's possible the blood draw would occur on the same day as the follow-up sleep study.