Name
tmstg2p
Label
Percent of sleep time in stage 2 sleep
Units
percent
Type
numeric
Sleep Heart Health Study (SHHS) Visit Number vs Percent of sleep time in stage 2 sleep
N Mean StdDev Median Min Max Unknown Total
Visit 1 5,804 57.6 ± 13.4 57.2 10.9 100.0 - 5,804
Interim Follow-up Visit - - - - - - - -
Visit 2 2,651 58.1 ± 11.9 58.0 0.0 100.0 1,429 4,080
CVD Outcomes - - - - - - - -
Age at Sleep Heart Health Study Visit One (SHHS1) vs Percent of sleep time in stage 2 sleep
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 5,804 57.6 ± 13.4 57.2 10.9 100.0 - 5,804
35-44 years 342 56.6 ± 11.0 56.0 23.2 100.0 - 342
45-54 years 1,017 56.4 ± 11.6 56.4 19.3 100.0 - 1,017
55-64 years 1,769 56.6 ± 12.8 56.2 16.3 100.0 - 1,769
65-74 years 1,617 57.9 ± 13.6 57.8 15.6 100.0 - 1,617
75-84 years 955 59.9 ± 15.3 59.6 10.9 100.0 - 955
85 years or older 104 63.8 ± 17.4 61.2 15.0 100.0 - 104
Gender vs Percent of sleep time in stage 2 sleep
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 5,804 57.6 ± 13.4 57.2 10.9 100.0 - 5,804
Male 2,765 61.4 ± 12.0 61.0 20.0 100.0 - 2,765
Female 3,039 54.2 ± 13.6 53.3 10.9 100.0 - 3,039
Gender vs Percent of sleep time in stage 2 sleep
Visit 2
N Mean StdDev Median Min Max Unknown Total
Total 2,651 58.1 ± 11.9 58.0 0.0 100.0 1,429 4,080
Male 1,226 62.3 ± 11.2 62.3 0.0 100.0 635 1,861
Female 1,425 54.5 ± 11.4 54.2 20.0 100.0 794 2,219
Race vs Percent of sleep time in stage 2 sleep
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 5,804 57.6 ± 13.4 57.2 10.9 100.0 - 5,804
White 4,907 57.2 ± 13.2 56.9 10.9 100.0 - 4,907
Black 515 62.6 ± 15.0 62.0 23.2 100.0 - 515
Other 382 55.8 ± 11.4 55.7 28.1 100.0 - 382
Race vs Percent of sleep time in stage 2 sleep
Visit 2
N Mean StdDev Median Min Max Unknown Total
Total 2,651 58.1 ± 11.9 58.0 0.0 100.0 1,429 4,080
White 2,311 57.8 ± 11.8 57.8 0.0 100.0 1,276 3,587
Black 181 62.9 ± 13.4 62.3 25.6 100.0 75 256
Other 159 56.1 ± 11.2 55.8 27.5 84.4 78 237