quhr rdi0ou
Name
quoxim
Label
Quality of the oximetry 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
Quality of the oximetry 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 - - 1 -
25-49% of time with artifact-free signal - - 2 -
50-74% of time with artifact-free signal - - 4 -
75-94% of time with artifact-free signal - - 64 -
Entire sleep time (at least 95%) artifact-free - - 2,580 -
Unknown - - 1,429 -
Quality of the oximetry 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 - 1 1
25-49% of time with artifact-free signal - 2 2
50-74% of time with artifact-free signal 2 2 4
75-94% of time with artifact-free signal 39 25 64
Entire sleep time (at least 95%) artifact-free 1,185 1,395 2,580
Unknown 635 794 1,429
Quality of the oximetry 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 1 - - 1
25-49% of time with artifact-free signal 2 - - 2
50-74% of time with artifact-free signal 3 - 1 4
75-94% of time with artifact-free signal 52 8 4 64
Entire sleep time (at least 95%) artifact-free 2,253 173 154 2,580
Unknown 1,276 75 78 1,429