Name
hrqual
Label
Quality of the heart rate 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.

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 heart rate 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 224 - - -
At least 2 hours but less than 4 hours of artifact-free signal 116 - - -
At least 4 hours but less than 6 hours of artifact-free signal 694 - - -
At least 6 hours of artifact-free signal 4,770 - - -
Quality of the heart rate 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 9 24 54 62 60 15 224
At least 2 hours but less than 4 hours of artifact-free signal 5 15 33 26 34 3 116
At least 4 hours but less than 6 hours of artifact-free signal 35 103 232 184 128 12 694
At least 6 hours of artifact-free signal 293 875 1,450 1,345 733 74 4,770
Quality of the heart rate 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 91 133 224
At least 2 hours but less than 4 hours of artifact-free signal 45 71 116
At least 4 hours but less than 6 hours of artifact-free signal 327 367 694
At least 6 hours of artifact-free signal 2,302 2,468 4,770
Quality of the heart rate 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 196 20 8 224
At least 2 hours but less than 4 hours of artifact-free signal 101 11 4 116
At least 4 hours but less than 6 hours of artifact-free signal 582 81 31 694
At least 6 hours of artifact-free signal 4,028 403 339 4,770