Name
eeg1dur
Label
Hours of usable EEG1 signal
Description

Useable data for EEG/EOG/EMG data is defined by the number of hours that sleep stages can be distinguished from awake. Hours of useable signal are rounded out to the lowest whole integer (e.g. 4.6 hours of useable data = 4).

Units
hours
Type
numeric
Tags
hrs
Sleep Heart Health Study (SHHS) Visit Number vs Hours of usable EEG1 signal
N Mean StdDev Median Min Max Unknown Total
Visit 1 5,804 6.6 ± 1.3 7.0 0.0 9.0 - 5,804
Interim Follow-up Visit - - - - - - - -
Visit 2 2,651 7.2 ± 1.4 7.0 0.0 11.0 1,429 4,080
CVD Outcomes - - - - - - - -
Age at Sleep Heart Health Study Visit One (SHHS1) vs Hours of usable EEG1 signal
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 5,804 6.6 ± 1.3 7.0 0.0 9.0 - 5,804
35-44 years 342 6.5 ± 1.2 7.0 0.0 8.0 - 342
45-54 years 1,017 6.6 ± 1.2 7.0 0.0 8.0 - 1,017
55-64 years 1,769 6.6 ± 1.3 7.0 0.0 9.0 - 1,769
65-74 years 1,617 6.6 ± 1.4 7.0 0.0 8.0 - 1,617
75-84 years 955 6.6 ± 1.3 7.0 0.0 9.0 - 955
85 years or older 104 6.8 ± 1.3 7.0 0.0 8.0 - 104
Gender vs Hours of usable EEG1 signal
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 5,804 6.6 ± 1.3 7.0 0.0 9.0 - 5,804
Male 2,765 6.5 ± 1.3 7.0 0.0 9.0 - 2,765
Female 3,039 6.7 ± 1.3 7.0 0.0 9.0 - 3,039
Gender vs Hours of usable EEG1 signal
Visit 2
N Mean StdDev Median Min Max Unknown Total
Total 2,651 7.2 ± 1.4 7.0 0.0 11.0 1,429 4,080
Male 1,226 7.1 ± 1.4 7.0 0.0 11.0 635 1,861
Female 1,425 7.3 ± 1.4 7.0 0.0 11.0 794 2,219
Race vs Hours of usable EEG1 signal
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 5,804 6.6 ± 1.3 7.0 0.0 9.0 - 5,804
White 4,907 6.6 ± 1.3 7.0 0.0 9.0 - 4,907
Black 515 6.4 ± 1.3 7.0 0.0 8.0 - 515
Other 382 6.7 ± 1.3 7.0 0.0 8.0 - 382
Race vs Hours of usable EEG1 signal
Visit 2
N Mean StdDev Median Min Max Unknown Total
Total 2,651 7.2 ± 1.4 7.0 0.0 11.0 1,429 4,080
White 2,311 7.2 ± 1.4 7.0 0.0 11.0 1,276 3,587
Black 181 7.4 ± 1.7 7.0 2.0 11.0 75 256
Other 159 7.4 ± 1.3 7.0 0.0 10.0 78 237