ai_nrem arnrembp
Name
ai_rem
Label
Arousal Index (REM)
Description

REM Arousal Index - total arousals in REM sleep per hours of REM sleep (Total number of arousals in REM sleep) / (hours of REM sleep)

Calculation
ai_rem = 60 * ( arrembp + arremop ) / minremp
Units
events per hour
Type
numeric
Tags
ai_rem
SHHS Visit Number vs Arousal Index (REM)
N Mean StdDev Median Min Max Unknown Total
Visit 1 5,615 15.4 ± 10.9 13.0 0.0 87.4 189 5,804
Visit 2 2,602 14.8 ± 10.6 12.3 0.0 90.0 1,478 4,080
CVD Outcomes - - - - - - 5,042 5,042
Age at SHHS1 vs Arousal Index (REM)
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 5,615 15.4 ± 10.9 13.0 0.0 87.4 189 5,804
39.0 to 55.0 years 1,412 15.2 ± 10.4 13.1 0.0 87.4 39 1,451
55.0 to 63.0 years 1,419 16.1 ± 11.1 13.5 0.0 81.6 32 1,451
63.0 to 72.0 years 1,413 16.1 ± 11.3 13.7 0.0 82.2 38 1,451
72.0 to 100.0 years 1,371 14.3 ± 11.0 11.6 0.0 80.0 80 1,451
Gender vs Arousal Index (REM)
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 5,615 15.4 ± 10.9 13.0 0.0 87.4 189 5,804
Female 2,936 13.7 ± 10.0 11.4 0.0 77.6 103 3,039
Male 2,679 17.3 ± 11.6 14.9 0.0 87.4 86 2,765
Gender vs Arousal Index (REM)
Visit 2
N Mean StdDev Median Min Max Unknown Total
Total 2,602 14.8 ± 10.6 12.3 0.0 90.0 1,478 4,080
Female 1,408 13.3 ± 9.8 10.6 0.0 84.8 811 2,219
Male 1,194 16.5 ± 11.1 14.2 0.0 90.0 667 1,861
Race vs Arousal Index (REM)
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 5,615 15.4 ± 10.9 13.0 0.0 87.4 189 5,804
white 4,767 15.6 ± 11.0 13.1 0.0 87.4 140 4,907
black 468 15.1 ± 11.1 12.9 0.0 80.0 47 515
native amer/alaskan 11 9.1 ± 9.4 4.5 0.0 22.6 - 11
asian/pacific islander 88 14.0 ± 8.6 13.2 0.0 41.5 - 88
hispanic/mex. amer 278 14.5 ± 10.5 11.6 0.0 65.5 2 280
other 3 24.2 ± 14.0 19.4 13.2 40.0 - 3
Race vs Arousal Index (REM)
Visit 2
N Mean StdDev Median Min Max Unknown Total
Total 2,602 14.8 ± 10.6 12.3 0.0 90.0 1,478 4,080
white 2,273 14.8 ± 10.6 12.3 0.0 90.0 1,314 3,587
black 170 14.7 ± 10.3 12.5 0.0 55.7 86 256
native amer/alaskan 3 21.3 ± 7.9 19.4 14.6 30.0 5 8
asian/pacific islander 34 13.0 ± 8.7 8.8 1.8 30.4 14 48
hispanic/mex. amer 121 14.7 ± 11.6 11.8 0.0 84.8 59 180
other 1 10.1 - 10.1 10.1 10.1 - 1