Name
eogrqual
Label
Quality of the EOGR signal
Description

Sleep Heart Health Study Visit 1 (SHHS1)-Vary from 1 (poorest) to 4 (best) and reflect the proportion of time the signals were useable. Useable data for EEG/EOG/EMG data is defined by the number of hours that sleep stages can be distinguished from awake.

Domain
sigqual
  • 1: Less than 2 hours of artifact-free signal
  • 2: At least 2 hours but less than 4 hours of artifact-free signal
  • 3: At least 4 hours but less than 6 hours of artifact-free signal
  • 4: At least 6 hours of artifact-free signal
Type
choices
Quality of the EOGR signal vs Sleep Heart Health Study (SHHS) Visit Number
Visit 1 Interim Follow-up Visit Visit 2 CVD Outcomes
Total 5,804 - - -
Less than 2 hours of artifact-free signal 63 - - -
At least 2 hours but less than 4 hours of artifact-free signal 44 - - -
At least 4 hours but less than 6 hours of artifact-free signal 653 - - -
At least 6 hours of artifact-free signal 5,044 - - -
Quality of the EOGR signal vs Age at Sleep Heart Health Study Visit One (SHHS1)
Visit 1
35-44 years 45-54 years 55-64 years 65-74 years 75-84 years 85 years or older Total
Total 342 1,017 1,769 1,617 955 104 5,804
Less than 2 hours of artifact-free signal 2 7 16 18 20 - 63
At least 2 hours but less than 4 hours of artifact-free signal 6 8 12 10 4 4 44
At least 4 hours but less than 6 hours of artifact-free signal 43 94 200 187 118 11 653
At least 6 hours of artifact-free signal 291 908 1,541 1,402 813 89 5,044
Quality of the EOGR signal vs Gender of the participant
Visit 1
Male Female Total
Total 2,765 3,039 5,804
Less than 2 hours of artifact-free signal 29 34 63
At least 2 hours but less than 4 hours of artifact-free signal 25 19 44
At least 4 hours but less than 6 hours of artifact-free signal 327 326 653
At least 6 hours of artifact-free signal 2,384 2,660 5,044
Quality of the EOGR signal vs Race of the participant
Visit 1
White Black Other Total
Total 4,907 515 382 5,804
Less than 2 hours of artifact-free signal 46 14 3 63
At least 2 hours but less than 4 hours of artifact-free signal 35 8 1 44
At least 4 hours but less than 6 hours of artifact-free signal 547 78 28 653
At least 6 hours of artifact-free signal 4,279 415 350 5,044