Histogram

Quality of the thoracic 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 406 - - -
At least 2 hours but less than 4 hours of artifact-free signal 455 - - -
At least 4 hours but less than 6 hours of artifact-free signal 1,433 - - -
At least 6 hours of artifact-free signal 3,508 - - -
Unknown 2 - - -
Quality of the thoracic 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 72 155 116 42 6 406
At least 2 hours but less than 4 hours of artifact-free signal 19 81 149 139 57 10 455
At least 4 hours but less than 6 hours of artifact-free signal 81 230 463 396 236 27 1,433
At least 6 hours of artifact-free signal 226 634 1,002 965 620 61 3,508
Unknown 1 - - 1 - - 2
Quality of the thoracic 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 175 231 406
At least 2 hours but less than 4 hours of artifact-free signal 232 223 455
At least 4 hours but less than 6 hours of artifact-free signal 686 747 1,433
At least 6 hours of artifact-free signal 1,672 1,836 3,508
Unknown - 2 2
Quality of the thoracic 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 367 23 16 406
At least 2 hours but less than 4 hours of artifact-free signal 383 36 36 455
At least 4 hours but less than 6 hours of artifact-free signal 1,189 150 94 1,433
At least 6 hours of artifact-free signal 2,966 306 236 3,508
Unknown 2 - - 2