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NSRR
RMSSD - SHHS Variables
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Variables
Old Version
You are viewing variable information that is kept around for historical purposes only. The latest version
v0.20.0
is
available here
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v0.11.1
shhs
variables
HRV Analysis
rmssd
rmssd
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History
pnn50
sdann
Name
rmssd
Label
Square root of the mean of the squares of difference between adjacent NN intervals
Units
milliseconds
Type
numeric
SHHS Visit Number vs Square root of the mean of the squares of difference between adjacent NN intervals
N
Mean
StdDev
Median
Min
Max
Unknown
Total
Visit 1
42,920
35.3
± 28.7
27.5
4.4
306.3
-
42,920
Interim Follow-up Visit
-
-
-
-
-
-
-
-
Visit 2
44,578
34.1
± 29.6
26.0
3.1
475.1
-
44,578
CVD Outcomes
-
-
-
-
-
-
-
-