Name
ekgqual
Label
B7b. EKG (quality code)
Domain
signalquality
  • 1: <25% of estimated sleep time
  • 2: 25-49% of estimated sleep time
  • 3: 50-74% of estimated sleep time
  • 4: 75-94% of estimated sleep time
  • 5: Entire estimated sleep time (>95%)
Type
choices
B7b. EKG (quality code) vs A4b. Visit of Sleep Study
Visit 1 Visit 3
Total 3,012 2,332
<25% of estimated sleep time 30 22
25-49% of estimated sleep time 15 14
50-74% of estimated sleep time 37 29
75-94% of estimated sleep time 317 261
Entire estimated sleep time (>95%) 2,613 2,006
B7b. EKG (quality code) vs Race/ethnicity combined categories derived from V1AF05 and V1AF07a-g
Visit 1
Non-Hispanic White Non-Hispanic Black Hispanic Asian Other Total
Total 1,842 359 557 112 142 3,012
<25% of estimated sleep time 12 9 6 2 1 30
25-49% of estimated sleep time 9 3 3 - - 15
50-74% of estimated sleep time 18 7 8 1 3 37
75-94% of estimated sleep time 186 51 53 11 16 317
Entire estimated sleep time (>95%) 1,617 289 487 98 122 2,613
B7b. EKG (quality code) vs Race/ethnicity combined categories derived from V1AF05 and V1AF07a-g
Visit 3
Non-Hispanic White Non-Hispanic Black Hispanic Asian Other Total
Total 1,494 247 397 84 110 2,332
<25% of estimated sleep time 13 1 5 1 2 22
25-49% of estimated sleep time 5 3 6 - - 14
50-74% of estimated sleep time 19 7 2 - 1 29
75-94% of estimated sleep time 177 26 45 6 7 261
Entire estimated sleep time (>95%) 1,280 210 339 77 100 2,006