quair quchin
Name
quchest
Label
Quality of the thoracic signal
Description

Sleep Heart Health Study Visit 2 (SHHS2)-These vary from 1 (poorest) to 5 (best) and reflect the proportion of sleep time the signals were useable. Useable respiratory data is defined as the number of hours that abnormal breaths can be distinguished from normal breaths.

Domain
sigqual2
  • 1: Less than 25% of time with artifact-free signal
  • 2: 25-49% of time with artifact-free signal
  • 3: 50-74% of time with artifact-free signal
  • 4: 75-94% of time with artifact-free signal
  • 5: Entire sleep time (at least 95%) artifact-free
Type
choices
Tags
respiratory belt thorax
Quality of the thoracic signal vs Sleep Heart Health Study (SHHS) Visit Number
Visit 1 Interim Follow-up Visit Visit 2 CVD Outcomes
Total - - 4,080 -
Less than 25% of time with artifact-free signal - - 54 -
25-49% of time with artifact-free signal - - 68 -
50-74% of time with artifact-free signal - - 159 -
75-94% of time with artifact-free signal - - 397 -
Entire sleep time (at least 95%) artifact-free - - 1,973 -
Unknown - - 1,429 -
Quality of the thoracic signal vs Gender of the participant
Visit 2
Male Female Total
Total 1,861 2,219 4,080
Less than 25% of time with artifact-free signal 21 33 54
25-49% of time with artifact-free signal 21 47 68
50-74% of time with artifact-free signal 59 100 159
75-94% of time with artifact-free signal 185 212 397
Entire sleep time (at least 95%) artifact-free 940 1,033 1,973
Unknown 635 794 1,429
Quality of the thoracic signal vs Race of the participant
Visit 2
White Black Other Total
Total 3,587 256 237 4,080
Less than 25% of time with artifact-free signal 48 3 3 54
25-49% of time with artifact-free signal 54 9 5 68
50-74% of time with artifact-free signal 137 9 13 159
75-94% of time with artifact-free signal 353 19 25 397
Entire sleep time (at least 95%) artifact-free 1,719 141 113 1,973
Unknown 1,276 75 78 1,429