Name

ai_nrem

Label

Arousal Index (NREM)

Description

Non-REM Arousal Index - total arousals in non-REM sleep per hours of non-REM sleep

Calculation
ai_nrem = 60 * ( arnrembp + arnremop ) / ( slpprdp - minremp )
Units
events per hour
Type
numeric
Visit vs Arousal Index (NREM)
N Mean StdDev Median Min Max Unknown Total
Visit 5 718 15.8 ± 10.6 13.1 2.6 74.3 17 735
Age at time of visit vs Arousal Index (NREM)
Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 643 15.8 ± 10.5 13.1 2.6 74.3 15 658
5-14 yrs old 63 7.5 ± 2.7 7.1 3.2 17.7 1 64
15-24 yrs old 111 11.2 ± 5.9 9.6 3.1 41.4 1 112
25-34 yrs old 62 16.3 ± 9.5 14.2 3.5 54.7 - 62
35-44 years 94 17.2 ± 10.0 15.0 4.6 74.3 4 98
45-54 years 142 15.6 ± 9.3 13.7 2.6 53.7 6 148
55-64 years 82 18.9 ± 11.9 15.8 4.8 67.8 2 84
65-74 years 57 21.8 ± 12.6 19.3 5.5 65.5 - 57
75-84 years 30 24.2 ± 15.8 20.2 5.4 61.9 1 31
85 years or older 2 30.5 ± 0.2 30.5 30.4 30.6 - 2
Sex vs Arousal Index (NREM)
Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 718 15.8 ± 10.6 13.1 2.6 74.3 17 735
Female 396 14.2 ± 8.6 11.9 2.7 61.9 10 406
Male 322 17.8 ± 12.3 14.2 2.6 74.3 7 329
Race vs Arousal Index (NREM)
Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 718 15.8 ± 10.6 13.1 2.6 74.3 17 735
White 297 15.5 ± 10.4 12.7 2.7 74.3 7 304
Black 399 16.3 ± 10.9 13.4 2.6 65.5 10 409
Other 22 11.2 ± 5.0 9.7 4.5 20.3 - 22