Name

ai_all

Label

Arousal Index

Description

Total number of arousals per hour of sleep. Ratio of count of arousals to total sleep time in hours.

Calculation
ai_all = 60 * ( arrembp + arremop + arnrembp + arnremop ) / slpprdp
Units
events per hour
Type
numeric
Sleep Heart Health Study (SHHS) Visit Number vs Arousal Index
N Mean StdDev Median Min Max Unknown Total
Visit 1 5,642 19.2 ± 10.7 16.8 0.0 110.4 162 5,804
Interim Follow-up Visit - - - - - - - -
Visit 2 2,613 18.4 ± 10.2 16.2 2.6 81.4 1,467 4,080
CVD Outcomes - - - - - - - -
Age at Sleep Heart Health Study Visit One (SHHS1) vs Arousal Index
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 5,642 19.2 ± 10.7 16.8 0.0 110.4 162 5,804
35-44 years 336 15.3 ± 8.9 13.6 2.8 90.7 6 342
45-54 years 999 17.1 ± 9.6 15.5 0.0 99.4 18 1,017
55-64 years 1,734 19.1 ± 10.4 16.7 2.1 90.8 35 1,769
65-74 years 1,572 20.2 ± 10.8 17.9 2.5 110.4 45 1,617
75-84 years 907 20.9 ± 11.4 18.5 2.2 74.4 48 955
85 years or older 94 23.1 ± 14.0 20.0 5.5 65.7 10 104
Gender vs Arousal Index
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 5,642 19.2 ± 10.7 16.8 0.0 110.4 162 5,804
Male 2,691 21.5 ± 11.6 18.9 0.0 110.4 74 2,765
Female 2,951 17.0 ± 9.2 15.1 2.1 74.7 88 3,039
Gender vs Arousal Index
Visit 2
N Mean StdDev Median Min Max Unknown Total
Total 2,613 18.4 ± 10.2 16.2 2.6 81.4 1,467 4,080
Male 1,200 20.6 ± 10.9 18.5 4.0 81.4 661 1,861
Female 1,413 16.5 ± 9.0 14.6 2.6 80.6 806 2,219
Race vs Arousal Index
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 5,642 19.2 ± 10.7 16.8 0.0 110.4 162 5,804
White 4,785 19.4 ± 10.6 17.1 2.1 110.4 122 4,907
Black 477 18.3 ± 11.8 15.7 0.0 99.4 38 515
Other 380 16.8 ± 9.5 14.8 4.2 78.0 2 382
Race vs Arousal Index
Visit 2
N Mean StdDev Median Min Max Unknown Total
Total 2,613 18.4 ± 10.2 16.2 2.6 81.4 1,467 4,080
White 2,280 18.5 ± 10.2 16.4 2.6 81.4 1,307 3,587
Black 174 18.5 ± 10.6 15.3 4.7 57.0 82 256
Other 159 16.1 ± 8.9 14.1 3.6 61.8 78 237