Name

ahi_a0h4a

Label

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

Calculation
ahi_a0h4a = 60 * (hremba4 + hroa4 + hnrba4 + hnroa4 + 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 or arousal] per hour of sleep
N Mean StdDev Median Min Max Unknown Total
Visit 1 5,804 14.5 ± 14.5 9.9 0.0 154.3 - 5,804
Interim Follow-up Visit - - - - - - - -
Visit 2 2,651 14.6 ± 14.7 9.7 0.0 117.6 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 or arousal] per hour of sleep
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 5,804 14.5 ± 14.5 9.9 0.0 154.3 - 5,804
35-44 years 342 9.9 ± 13.0 5.7 0.2 96.5 - 342
45-54 years 1,017 11.5 ± 13.6 7.6 0.0 122.1 - 1,017
55-64 years 1,769 14.4 ± 14.5 9.6 0.0 101.5 - 1,769
65-74 years 1,617 15.9 ± 14.8 11.6 0.0 154.3 - 1,617
75-84 years 955 16.5 ± 14.2 12.2 0.0 92.6 - 955
85 years or older 104 18.5 ± 15.8 13.8 0.0 79.5 - 104
Gender vs Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation or arousal] per hour of sleep
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 5,804 14.5 ± 14.5 9.9 0.0 154.3 - 5,804
Male 2,765 18.4 ± 15.8 13.8 0.0 121.1 - 2,765
Female 3,039 10.9 ± 12.1 7.3 0.0 154.3 - 3,039
Gender vs Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation or arousal] per hour of sleep
Visit 2
N Mean StdDev Median Min Max Unknown Total
Total 2,651 14.6 ± 14.7 9.7 0.0 117.6 1,429 4,080
Male 1,226 18.4 ± 16.1 13.8 0.0 117.6 635 1,861
Female 1,425 11.3 ± 12.6 7.5 0.0 99.9 794 2,219
Race vs Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation or arousal] per hour of sleep
Visit 1
N Mean StdDev Median Min Max Unknown Total
Total 5,804 14.5 ± 14.5 9.9 0.0 154.3 - 5,804
White 4,907 14.7 ± 14.4 10.1 0.0 154.3 - 4,907
Black 515 14.1 ± 16.0 8.6 0.0 113.1 - 515
Other 382 11.9 ± 12.7 7.9 0.2 80.7 - 382
Race vs Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation or arousal] per hour of sleep
Visit 2
N Mean StdDev Median Min Max Unknown Total
Total 2,651 14.6 ± 14.7 9.7 0.0 117.6 1,429 4,080
White 2,311 14.7 ± 14.8 9.9 0.0 117.6 1,276 3,587
Black 181 14.6 ± 15.1 8.7 0.1 78.6 75 256
Other 159 12.2 ± 13.9 8.0 0.0 99.9 78 237