SHHS, MESA and WCS - are PSGs scored?

I'm sorry if this sounds like a silly question but when our sleep lab lead tried to open the PSGs it was unscored. Is there somewhere where we can find scored PSG data?

Another question regarding available HRV data notes: Do these have full VLF, LF, HF, LF/HF ratio, RMSSD information for each PSG?

Hello, thanks for your question!

1. All of these cohorts were scored by trained technicians. Raw signals and scoring annotations are available for users to download.
2. Yes, the signal data are provided as .EDF (https://www.edfplus.info/). The scoring annotations come in different formats depending on the dataset.
3. It looks like the SHHS and MESA HRV projects include many of the metrics you listed. More information is available on these page: https://sleepdata.org/datasets/shhs/pages/13-hrv-analysis.md and https://sleepdata.org/datasets/mesa/pages/hrv-analysis.md

The dataset documentation contains information on the scoring procedures and available PSG files, e.g.:

• SHHS

  • https://sleepdata.org/datasets/shhs/pages/mop/6-00-mop-toc.md
  • https://sleepdata.org/datasets/shhs/pages/05-polysomnography-introduction.md

• MESA

  • https://sleepdata.org/datasets/mesa/files/documentation/MESA_Sleep_Polysomnography_Scoring_Manual.pdf
  • https://sleepdata.org/datasets/mesa/pages/polysomnography-introduction.md

• WSC

  • https://sleepdata.org/datasets/wsc/files/documentation/WSCS_Manual_of_Operations.pdf
  • https://sleepdata.org/datasets/wsc/pages/polysomnography-introduction.md

For the MESA dataset, is there a record of how many technicians scored each recording?