rdi2p rdi2pns
Name
rdi2pa
Label
Overall RDI at 2% oxygen desaturation or arousal
Description

RDI at 2% oxygen desaturation or arousal [(Total number of apneas and hypopneas with arousal associated with >= 2% oxygen desaturation) / (hours of sleep)]

Calculation
rdi2pa = 60 * ( hremba2 + hroa2 + hnrba2 + hnroa2 + carba2 + caroa2 + canba2 + canoa2 + oarba2 + oaroa2 + oanba2 + oanoa2 ) / slpprdp
Units
events per hour
Type
numeric
Tags
ahi rdi rdi2pa
SHHS Visit Number vs Overall RDI at 2% oxygen desaturation or arousal
N Mean StdDev Median Min Max Unknown Total
Visit 1 5,642 23.9 ± 17.6 19.3 0.0 125.9 162 5,804
Visit 2 2,613 23.6 ± 17.7 18.9 0.1 119.2 1,467 4,080
CVD Outcomes - - - - - - 5,042 5,042
Age at SHHS1 vs Overall RDI at 2% oxygen desaturation or arousal
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 5,642 23.9 ± 17.6 19.3 0.0 125.9 162 5,804
39.0 to 55.0 years 1,424 19.1 ± 16.7 14.8 0.0 125.9 27 1,451
55.0 to 63.0 years 1,422 23.6 ± 17.9 18.7 0.6 124.6 29 1,451
63.0 to 72.0 years 1,417 26.5 ± 18.3 22.3 0.3 116.6 34 1,451
72.0 to 100.0 years 1,379 26.4 ± 16.5 23.3 0.7 124.0 72 1,451
Gender vs Overall RDI at 2% oxygen desaturation or arousal
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 5,642 23.9 ± 17.6 19.3 0.0 125.9 162 5,804
Female 2,951 19.1 ± 15.5 15.1 0.0 125.9 88 3,039
Male 2,691 29.1 ± 18.3 25.4 0.3 120.4 74 2,765
Gender vs Overall RDI at 2% oxygen desaturation or arousal
Visit 2
N Mean StdDev Median Min Max Unknown Total
Total 2,613 23.6 ± 17.7 18.9 0.1 119.2 1,467 4,080
Female 1,413 19.2 ± 15.8 14.9 0.1 118.6 806 2,219
Male 1,200 28.7 ± 18.4 24.2 0.3 119.2 661 1,861
Race vs Overall RDI at 2% oxygen desaturation or arousal
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 5,642 23.9 ± 17.6 19.3 0.0 125.9 162 5,804
white 4,785 24.3 ± 17.6 19.9 0.0 125.9 122 4,907
black 477 22.6 ± 19.0 17.4 0.3 124.6 38 515
native amer/alaskan 11 24.1 ± 13.5 20.6 5.1 51.7 - 11
asian/pacific islander 88 16.4 ± 14.2 11.1 0.6 67.6 - 88
hispanic/mex. amer 278 21.0 ± 16.6 16.8 0.6 79.9 2 280
other 3 19.0 ± 12.7 13.6 9.9 33.5 - 3
Race vs Overall RDI at 2% oxygen desaturation or arousal
Visit 2
N Mean StdDev Median Min Max Unknown Total
Total 2,613 23.6 ± 17.7 18.9 0.1 119.2 1,467 4,080
white 2,280 23.9 ± 17.6 19.4 0.3 119.2 1,307 3,587
black 174 23.0 ± 18.9 16.3 0.1 92.3 82 256
native amer/alaskan 3 13.7 ± 9.0 13.3 5.0 23.0 5 8
asian/pacific islander 34 15.7 ± 10.8 12.0 2.8 43.4 14 48
hispanic/mex. amer 121 21.1 ± 17.7 17.5 0.2 105.3 59 180
other 1 5.9 - 5.9 5.9 5.9 - 1