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NSRR
HF - SHHS Variables
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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
v0.20.0
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v0.11.0
shhs
variables
HRV Analysis
hf
hf
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hasrespevent
hf_n
Name
hf
Label
High frequency power: the NN interval spectral power between 0.15 and 0.4 Hz
Units
milliseconds squared
Type
numeric
SHHS Visit Number vs High frequency power: the NN interval spectral power between 0.15 and 0.4 Hz
N
Mean
StdDev
Median
Min
Max
Unknown
Total
Visit 1
42,920
673.0
± 1,509.2
270.9
2.2
33,299.5
-
42,920
Interim Follow-up Visit
-
-
-
-
-
-
-
-
Visit 2
44,578
635.8
± 1,633.8
241.8
1.0
70,262.6
-
44,578
CVD Outcomes
-
-
-
-
-
-
-
-