Age

Quality of the abdominal 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 409 - - -
At least 2 hours but less than 4 hours of artifact-free signal 444 - - -
At least 4 hours but less than 6 hours of artifact-free signal 1,400 - - -
At least 6 hours of artifact-free signal 3,548 - - -
Unknown 3 - - -
Quality of the abdominal 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 15 58 135 129 64 8 409
At least 2 hours but less than 4 hours of artifact-free signal 19 52 141 127 92 13 444
At least 4 hours but less than 6 hours of artifact-free signal 83 231 429 392 238 27 1,400
At least 6 hours of artifact-free signal 224 676 1,064 967 561 56 3,548
Unknown 1 - - 2 - - 3
Quality of the abdominal 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 187 222 409
At least 2 hours but less than 4 hours of artifact-free signal 193 251 444
At least 4 hours but less than 6 hours of artifact-free signal 662 738 1,400
At least 6 hours of artifact-free signal 1,723 1,825 3,548
Unknown - 3 3
Quality of the abdominal 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 368 29 12 409
At least 2 hours but less than 4 hours of artifact-free signal 364 55 25 444
At least 4 hours but less than 6 hours of artifact-free signal 1,173 139 88 1,400
At least 6 hours of artifact-free signal 2,999 292 257 3,548
Unknown 3 - - 3