Name

rem_lat1

Label

REM Latency I

Description

Total time from beginning of sleep to first epoch of REM, rounded to nearest minute

Calculation
rem_lat1 = remlaip
Units
minutes
Type
numeric
Visit vs REM Latency I
N Mean StdDev Median Min Max Unknown Total
Visit 5 718 139.0 ± 87.9 117.0 0.0 523.0 17 735
Age at time of visit vs REM Latency I
Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 643 139.1 ± 88.7 117.0 0.0 523.0 15 658
5-14 yrs old 63 179.7 ± 75.2 174.0 0.0 478.0 1 64
15-24 yrs old 111 148.1 ± 83.2 140.0 0.0 426.0 1 112
25-34 yrs old 62 142.9 ± 91.9 116.5 9.0 467.0 - 62
35-44 years 94 127.4 ± 88.7 102.0 3.0 443.0 4 98
45-54 years 142 123.9 ± 79.8 99.0 0.0 459.0 6 148
55-64 years 82 117.1 ± 79.0 104.0 0.0 523.0 2 84
65-74 years 57 136.5 ± 89.5 114.0 0.0 357.0 - 57
75-84 years 30 177.7 ± 138.8 169.0 0.0 462.0 1 31
85 years or older 2 276.5 ± 38.9 276.5 249.0 304.0 - 2
Sex vs REM Latency I
Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 718 139.0 ± 87.9 117.0 0.0 523.0 17 735
Female 396 139.8 ± 87.5 119.0 0.0 506.0 10 406
Male 322 137.9 ± 88.5 114.5 0.0 523.0 7 329
Race vs REM Latency I
Visit 5
N Mean StdDev Median Min Max Unknown Total
Total 718 139.0 ± 87.9 117.0 0.0 523.0 17 735
White 297 138.2 ± 81.5 117.0 0.0 443.0 7 304
Black 399 139.3 ± 93.5 117.0 0.0 523.0 10 409
Other 22 144.1 ± 64.0 156.0 15.0 264.0 - 22