Histogram

Polysomnography (PSG) Quality Assessment (Sleep Heart Health Study Visit Two (SHHS2)): Overall signal quality vs Sleep Heart Health Study (SHHS) Visit Number
Visit 1 Interim Follow-up Visit Visit 2 CVD Outcomes
Total - - 4,080 -
Unsatisfactory - - - -
Poor - - - -
Fair - - 109 -
Good - - 243 -
Very Good - - 667 -
Excellent - - 947 -
Outstanding - - 685 -
Unknown - - 1,429 -
Polysomnography (PSG) Quality Assessment (Sleep Heart Health Study Visit Two (SHHS2)): Overall signal quality vs Gender of the participant
Visit 2
Male Female Total
Total 1,861 2,219 4,080
Unsatisfactory - - -
Poor - - -
Fair 50 59 109
Good 104 139 243
Very Good 305 362 667
Excellent 451 496 947
Outstanding 316 369 685
Unknown 635 794 1,429
Polysomnography (PSG) Quality Assessment (Sleep Heart Health Study Visit Two (SHHS2)): Overall signal quality vs Race of the participant
Visit 2
White Black Other Total
Total 3,587 256 237 4,080
Unsatisfactory - - - -
Poor - - - -
Fair 88 18 3 109
Good 218 11 14 243
Very Good 582 50 35 667
Excellent 814 70 63 947
Outstanding 609 32 44 685
Unknown 1,276 75 78 1,429