Name
minstg1p
Label
Time in stage 1 sleep
Units
minutes
Type
numeric
Sleep Heart Health Study (SHHS) Visit Number vs Time in stage 1 sleep
N Mean StdDev Median Min Max Unknown Total
Visit 1 - - - - - - - -
Interim Follow-up Visit - - - - - - - -
Visit 2 2,651 21.0 ± 16.7 18.0 0.0 397.0 1,429 4,080
CVD Outcomes - - - - - - - -
Gender vs Time in stage 1 sleep
Visit 2
N Mean StdDev Median Min Max Unknown Total
Total 2,651 21.0 ± 16.7 18.0 0.0 397.0 1,429 4,080
Male 1,226 24.2 ± 20.3 20.0 0.0 397.0 635 1,861
Female 1,425 18.2 ± 12.2 15.0 0.0 117.0 794 2,219
Race vs Time in stage 1 sleep
Visit 2
N Mean StdDev Median Min Max Unknown Total
Total 2,651 21.0 ± 16.7 18.0 0.0 397.0 1,429 4,080
White 2,311 20.8 ± 16.9 18.0 0.0 397.0 1,276 3,587
Black 181 23.4 ± 16.6 19.0 0.0 94.0 75 256
Other 159 20.0 ± 12.8 17.0 2.0 81.0 78 237