Name
pertsts2psg
Label
Percentage of stage 2 sleep among total sleep duration from type I polysomnography
Description

Conventionally, total sleep duration would be called total sleep time (TST).

Units
percentage
Type
numeric
Visit (Number) vs Percentage of stage 2 sleep among total sleep duration from type I polysomnography
N Mean StdDev Median Min Max Unknown Total
Baseline (BL) - - - - - - 1,516 1,516
Clinical Evaluation (CE) - - - - - - 1,516 1,516
Diagnostic Visit (DX) 1,223 60.7 ± 13.5 62.9 0.0 91.8 293 1,516
CPAP Titration Visit (CPAP) 1,065 62.1 ± 13.5 64.2 -2.0 93.7 451 1,516
Two Month Post-CPAP Neurocognitive Visit (2M) 879 61.6 ± 12.2 63.1 4.6 99.0 637 1,516
Four Month Post-CPAP Neurocognitive Visit (4M) - - - - - - 1,516 1,516
Six Month Post-CPAP Neurocognitive Visit (6M) 849 62.3 ± 11.7 63.7 0.5 89.3 667 1,516
Gender vs Percentage of stage 2 sleep among total sleep duration from type I polysomnography
Baseline (BL)
N Mean StdDev Median Min Max Unknown Total
Total - - - - - - 1,516 1,516
Male - - - - - - 958 958
Female - - - - - - 558 558
Gender vs Percentage of stage 2 sleep among total sleep duration from type I polysomnography
Clinical Evaluation (CE)
N Mean StdDev Median Min Max Unknown Total
Total - - - - - - 1,516 1,516
Male - - - - - - 958 958
Female - - - - - - 558 558
Gender vs Percentage of stage 2 sleep among total sleep duration from type I polysomnography
Diagnostic Visit (DX)
N Mean StdDev Median Min Max Unknown Total
Total 1,223 60.7 ± 13.5 62.9 0.0 91.8 293 1,516
Male 783 59.7 ± 14.7 62.1 0.0 91.8 175 958
Female 440 62.4 ± 11.1 64.1 2.5 85.0 118 558
Gender vs Percentage of stage 2 sleep among total sleep duration from type I polysomnography
CPAP Titration Visit (CPAP)
N Mean StdDev Median Min Max Unknown Total
Total 1,065 62.1 ± 13.5 64.2 -2.0 93.7 451 1,516
Male 699 61.1 ± 14.6 63.7 -2.0 90.5 259 958
Female 366 64.0 ± 11.1 65.2 9.7 93.7 192 558
Gender vs Percentage of stage 2 sleep among total sleep duration from type I polysomnography
Two Month Post-CPAP Neurocognitive Visit (2M)
N Mean StdDev Median Min Max Unknown Total
Total 879 61.6 ± 12.2 63.1 4.6 99.0 637 1,516
Male 572 60.9 ± 12.8 62.4 4.6 99.0 386 958
Female 307 62.9 ± 11.1 64.6 10.9 90.4 251 558
Gender vs Percentage of stage 2 sleep among total sleep duration from type I polysomnography
Four Month Post-CPAP Neurocognitive Visit (4M)
N Mean StdDev Median Min Max Unknown Total
Total - - - - - - 1,516 1,516
Male - - - - - - 958 958
Female - - - - - - 558 558
Gender vs Percentage of stage 2 sleep among total sleep duration from type I polysomnography
Six Month Post-CPAP Neurocognitive Visit (6M)
N Mean StdDev Median Min Max Unknown Total
Total 849 62.3 ± 11.7 63.7 0.5 89.3 667 1,516
Male 552 62.1 ± 12.1 63.8 1.6 88.6 406 958
Female 297 62.7 ± 10.9 63.5 0.5 89.3 261 558
Race/Ethnicity vs Percentage of stage 2 sleep among total sleep duration from type I polysomnography
Baseline (BL)
N Mean StdDev Median Min Max Unknown Total
Total - - - - - - 1,516 1,516
Native American - - - - - - 28 28
Asian - - - - - - 89 89
Black - - - - - - 172 172
Hispanic - - - - - - 116 116
White - - - - - - 1,102 1,102
Other - - - - - - 9 9
Race/Ethnicity vs Percentage of stage 2 sleep among total sleep duration from type I polysomnography
Clinical Evaluation (CE)
N Mean StdDev Median Min Max Unknown Total
Total - - - - - - 1,516 1,516
Native American - - - - - - 28 28
Asian - - - - - - 89 89
Black - - - - - - 172 172
Hispanic - - - - - - 116 116
White - - - - - - 1,102 1,102
Other - - - - - - 9 9
Race/Ethnicity vs Percentage of stage 2 sleep among total sleep duration from type I polysomnography
Diagnostic Visit (DX)
N Mean StdDev Median Min Max Unknown Total
Total 1,223 60.7 ± 13.5 62.9 0.0 91.8 293 1,516
Native American 20 57.0 ± 16.3 60.2 12.1 78.6 8 28
Asian 73 60.4 ± 14.4 62.9 13.0 84.6 16 89
Black 120 59.1 ± 13.8 61.8 4.4 84.7 52 172
Hispanic 84 59.1 ± 12.5 61.9 0.1 82.1 32 116
White 918 61.1 ± 13.5 63.3 0.0 91.8 184 1,102
Other 8 61.9 ± 11.5 64.2 38.1 77.6 1 9
Race/Ethnicity vs Percentage of stage 2 sleep among total sleep duration from type I polysomnography
CPAP Titration Visit (CPAP)
N Mean StdDev Median Min Max Unknown Total
Total 1,065 62.1 ± 13.5 64.2 -2.0 93.7 451 1,516
Native American 17 59.4 ± 11.4 61.4 38.3 74.9 11 28
Asian 60 62.1 ± 15.7 63.6 8.8 88.3 29 89
Black 97 61.4 ± 15.2 64.4 0.9 88.0 75 172
Hispanic 72 63.0 ± 11.1 64.1 8.2 79.3 44 116
White 814 62.2 ± 13.4 64.3 -2.0 93.7 288 1,102
Other 5 62.8 ± 10.4 62.6 46.4 73.3 4 9
Race/Ethnicity vs Percentage of stage 2 sleep among total sleep duration from type I polysomnography
Two Month Post-CPAP Neurocognitive Visit (2M)
N Mean StdDev Median Min Max Unknown Total
Total 879 61.6 ± 12.2 63.1 4.6 99.0 637 1,516
Native American 13 60.1 ± 11.5 60.4 34.1 75.1 15 28
Asian 49 63.7 ± 11.6 65.8 9.8 79.9 40 89
Black 77 63.1 ± 12.7 65.4 23.0 90.4 95 172
Hispanic 65 58.9 ± 12.9 61.5 4.6 78.3 51 116
White 672 61.6 ± 12.2 63.1 4.8 99.0 430 1,102
Other 3 59.3 ± 13.8 60.4 45.0 72.6 6 9
Race/Ethnicity vs Percentage of stage 2 sleep among total sleep duration from type I polysomnography
Four Month Post-CPAP Neurocognitive Visit (4M)
N Mean StdDev Median Min Max Unknown Total
Total - - - - - - 1,516 1,516
Native American - - - - - - 28 28
Asian - - - - - - 89 89
Black - - - - - - 172 172
Hispanic - - - - - - 116 116
White - - - - - - 1,102 1,102
Other - - - - - - 9 9
Race/Ethnicity vs Percentage of stage 2 sleep among total sleep duration from type I polysomnography
Six Month Post-CPAP Neurocognitive Visit (6M)
N Mean StdDev Median Min Max Unknown Total
Total 849 62.3 ± 11.7 63.7 0.5 89.3 667 1,516
Native American 13 58.4 ± 12.2 61.4 30.5 72.4 15 28
Asian 50 64.4 ± 8.4 65.7 45.3 88.1 39 89
Black 75 61.9 ± 11.5 62.0 29.9 89.3 97 172
Hispanic 61 61.5 ± 9.4 62.9 28.6 81.7 55 116
White 647 62.4 ± 12.1 63.9 0.5 88.6 455 1,102
Other 3 66.3 ± 15.6 58.4 56.2 84.2 6 9