Gender

Acceptable ECG signal quality vs Visit
Visit 1 Visit 2
Total 2,911 2,911
< 25% of sleep time - 10
25 - 49% of sleep 3 5
50 - 74% of sleep 11 12
75 - 94% of sleep 63 31
> 95% of sleep time 2,834 968
Unknown - 1,885
Acceptable ECG signal quality vs Age at Sleep Visit 1
Visit 1
67.0 to 72.0 years 72.0 to 76.0 years 76.0 to 80.0 years 80.0 to 90.0 years Total
Total 728 728 728 727 2,911
< 25% of sleep time - - - - -
25 - 49% of sleep 1 1 1 - 3
50 - 74% of sleep - 3 4 4 11
75 - 94% of sleep 17 16 12 18 63
> 95% of sleep time 710 708 711 705 2,834
Acceptable ECG signal quality vs Gender
Visit 1
Female Male Total
Total - 2,911 2,911
< 25% of sleep time - - -
25 - 49% of sleep - 3 3
50 - 74% of sleep - 11 11
75 - 94% of sleep - 63 63
> 95% of sleep time - 2,834 2,834
Acceptable ECG signal quality vs Gender
Visit 2
Female Male Total
Total - 2,911 2,911
< 25% of sleep time - 10 10
25 - 49% of sleep - 5 5
50 - 74% of sleep - 12 12
75 - 94% of sleep - 31 31
> 95% of sleep time - 968 968
Unknown - 1,885 1,885
Acceptable ECG signal quality vs Race Category
Visit 1
White African American Asian Native Hawaiian or Other Pacific Islander American Indian or Alaskan Native Multiracial Unknown Total
Total 2,651 99 85 3 1 30 42 2,911
< 25% of sleep time - - - - - - - -
25 - 49% of sleep 3 - - - - - - 3
50 - 74% of sleep 9 1 1 - - - - 11
75 - 94% of sleep 58 3 - - - 1 1 63
> 95% of sleep time 2,581 95 84 3 1 29 41 2,834
Acceptable ECG signal quality vs Race Category
Visit 2
White African American Asian Native Hawaiian or Other Pacific Islander American Indian or Alaskan Native Multiracial Unknown Total
Total 2,651 99 85 3 1 30 42 2,911
< 25% of sleep time 9 1 - - - - - 10
25 - 49% of sleep 4 1 - - - - - 5
50 - 74% of sleep 11 1 - - - - - 12
75 - 94% of sleep 30 - - - - - 1 31
> 95% of sleep time 842 38 49 3 1 14 21 968
Unknown 1,755 58 36 - - 16 20 1,885