Name

ahi_a0h4

Label

Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of sleep

Calculation
ahi_a0h4 = 60 * (hrembp4 + hrop4 + hnrbp4 + hnrop4 + carbp + carop + canbp + canop + oarbp + oarop + oanbp + oanop) / slpprdp
Units
events per hour
Type
numeric
Sleep Heart Health Study (SHHS) Visit Number vs Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of sleep
N Mean StdDev Median Min Max Unknown Total
Visit 1 5,804 10.2 ± 13.6 5.2 0.0 154.3 - 5,804
Interim Follow-up Visit - - - - - - - -
Visit 2 2,651 11.7 ± 14.1 6.8 0.0 116.0 1,429 4,080
CVD Outcomes - - - - - - - -
Age at Sleep Heart Health Study Visit One (SHHS1) vs Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of sleep
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 5,804 10.2 ± 13.6 5.2 0.0 154.3 - 5,804
35-44 years 342 6.8 ± 12.4 2.5 0.0 93.6 - 342
45-54 years 1,017 7.8 ± 13.0 3.2 0.0 119.5 - 1,017
55-64 years 1,769 10.0 ± 13.6 4.8 0.0 99.8 - 1,769
65-74 years 1,617 11.3 ± 13.9 6.7 0.0 154.3 - 1,617
75-84 years 955 12.0 ± 13.5 7.4 0.0 92.6 - 955
85 years or older 104 14.6 ± 14.9 9.3 0.0 75.2 - 104
Gender vs Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of sleep
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 5,804 10.2 ± 13.6 5.2 0.0 154.3 - 5,804
Male 2,765 13.3 ± 15.3 8.1 0.0 119.5 - 2,765
Female 3,039 7.3 ± 11.2 3.4 0.0 154.3 - 3,039
Gender vs Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of sleep
Visit 2
N Mean StdDev Median Min Max Unknown Total
Total 2,651 11.7 ± 14.1 6.8 0.0 116.0 1,429 4,080
Male 1,226 14.9 ± 15.7 9.5 0.0 116.0 635 1,861
Female 1,425 9.0 ± 11.8 5.1 0.0 96.5 794 2,219
Race vs Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of sleep
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 5,804 10.2 ± 13.6 5.2 0.0 154.3 - 5,804
White 4,907 10.3 ± 13.6 5.3 0.0 154.3 - 4,907
Black 515 10.7 ± 15.1 5.0 0.0 112.7 - 515
Other 382 8.4 ± 11.9 3.7 0.0 79.4 - 382
Race vs Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of sleep
Visit 2
N Mean StdDev Median Min Max Unknown Total
Total 2,651 11.7 ± 14.1 6.8 0.0 116.0 1,429 4,080
White 2,311 11.8 ± 14.1 6.9 0.0 116.0 1,276 3,587
Black 181 11.9 ± 14.1 6.5 0.0 74.6 75 256
Other 159 9.8 ± 13.1 5.8 0.0 89.8 78 237