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AHI_A0H4 - SOF Variables
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Study of Osteoporotic Fractures
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Variables
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You are viewing variable information that is kept around for historical purposes only. The latest version
v0.8.0
is
available here
.
v0.7.0
sof
variables
Polysomnography (PSG)
Respiratory Events
Indexes
ahi_a0h4
ahi_a0h4
Overview
Graphs
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Age
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History
ahi_a0h3a
ahi_a0h4a
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
Tags
central
obstructive
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 8
461
11.1
± 13.1
6.9
0.0
78.7
-
461
Age (categorical) vs Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of sleep
Visit 8
N
Mean
StdDev
Median
Min
Max
Unknown
Total
Total
455
10.9
± 12.7
6.9
0.0
78.7
-
455
75-84 years
325
10.2
± 12.0
6.8
0.0
78.7
-
325
85 years or older
130
12.7
± 14.1
8.2
0.0
75.5
-
130
Gender vs Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of sleep
Visit 8
N
Mean
StdDev
Median
Min
Max
Unknown
Total
Total
461
11.1
± 13.1
6.9
0.0
78.7
-
461
Female
461
11.1
± 13.1
6.9
0.0
78.7
-
461