ahi_c0h4 ahi_o0h3
Name
ahi_c0h4a
Label
Central Apnea-Hypopnea Index (AHI) >= 4% - number of [central apneas] and [hypopneas with >= 4% oxygen desaturation or arousal] per hour of sleep
Calculation
ahi_c0h4a = 60 * (hremba4 + hroa4 + hnrba4 + hnroa4 + carbp + carop + canbp + canop) / slpprdp
Units
events per hour
Type
numeric
Tags
non-rapid eye movement sleep non-rem nrem rapid eye movement sleep rem
Sleep Heart Health Study (SHHS) Visit Number vs Central Apnea-Hypopnea Index (AHI) >= 4% - number of [central 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 10.5 ± 9.4 8.0 0.0 94.1 - 5,804
Interim Follow-up Visit - - - - - - - -
Visit 2 2,651 10.8 ± 10.1 7.9 0.0 89.4 1,429 4,080
CVD Outcomes - - - - - - - -
Age at Sleep Heart Health Study Visit One (SHHS1) vs Central Apnea-Hypopnea Index (AHI) >= 4% - number of [central 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 10.5 ± 9.4 8.0 0.0 94.1 - 5,804
35-44 years 342 7.6 ± 8.2 4.8 0.2 56.4 - 342
45-54 years 1,017 8.9 ± 8.9 6.4 0.0 87.5 - 1,017
55-64 years 1,769 10.6 ± 9.4 8.0 0.0 68.8 - 1,769
65-74 years 1,617 11.5 ± 9.8 8.9 0.0 94.1 - 1,617
75-84 years 955 11.2 ± 9.1 9.1 0.0 56.1 - 955
85 years or older 104 10.5 ± 8.9 8.3 0.0 49.1 - 104
Gender vs Central Apnea-Hypopnea Index (AHI) >= 4% - number of [central 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 10.5 ± 9.4 8.0 0.0 94.1 - 5,804
Male 2,765 12.9 ± 9.9 10.6 0.0 87.5 - 2,765
Female 3,039 8.2 ± 8.2 5.9 0.0 94.1 - 3,039
Gender vs Central Apnea-Hypopnea Index (AHI) >= 4% - number of [central 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 10.8 ± 10.1 7.9 0.0 89.4 1,429 4,080
Male 1,226 13.4 ± 10.7 10.6 0.0 79.9 635 1,861
Female 1,425 8.5 ± 8.9 6.1 0.0 89.4 794 2,219
Race vs Central Apnea-Hypopnea Index (AHI) >= 4% - number of [central 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 10.5 ± 9.4 8.0 0.0 94.1 - 5,804
White 4,907 10.7 ± 9.5 8.1 0.0 94.1 - 4,907
Black 515 9.7 ± 9.3 6.9 0.0 56.7 - 515
Other 382 8.7 ± 7.7 6.5 0.2 48.3 - 382
Race vs Central Apnea-Hypopnea Index (AHI) >= 4% - number of [central 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 10.8 ± 10.1 7.9 0.0 89.4 1,429 4,080
White 2,311 10.9 ± 10.1 7.9 0.0 89.4 1,276 3,587
Black 181 9.9 ± 9.3 6.7 0.0 42.6 75 256
Other 159 9.7 ± 10.2 7.5 0.0 69.9 78 237