Name
quhr
Label
Quality of the heart rate 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.

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
Quality of the heart rate 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 - - 24 -
25-49% of time with artifact-free signal - - 12 -
50-74% of time with artifact-free signal - - 13 -
75-94% of time with artifact-free signal - - 58 -
Entire sleep time (at least 95%) artifact-free - - 2,544 -
Unknown - - 1,429 -
Quality of the heart rate 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 13 11 24
25-49% of time with artifact-free signal 4 8 12
50-74% of time with artifact-free signal 3 10 13
75-94% of time with artifact-free signal 21 37 58
Entire sleep time (at least 95%) artifact-free 1,185 1,359 2,544
Unknown 635 794 1,429
Quality of the heart rate 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 22 2 - 24
25-49% of time with artifact-free signal 9 - 3 12
50-74% of time with artifact-free signal 8 4 1 13
75-94% of time with artifact-free signal 48 8 2 58
Entire sleep time (at least 95%) artifact-free 2,224 167 153 2,544
Unknown 1,276 75 78 1,429