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TOT_PWR - CHAT Variables
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Childhood Adenotonsillectomy Trial
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Variables
v0.14.0
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variables
Clinical Data
Diagnostic Studies
Heart Rate Variability
tot_pwr
tot_pwr
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start__sec_
ulf
Name
tot_pwr
Label
Total normal sinus to normal sinus interbeat (NN) interval spectral power up to 0.4 Hz
Units
seconds squared (s2)
Type
numeric
Visit Number vs Total normal sinus to normal sinus interbeat (NN) interval spectral power up to 0.4 Hz
N
Mean
StdDev
Median
Min
Max
Unknown
Total
Baseline
45,072
0.008
± 0.009
0.005
1.0,-05
0.2
-
45,072
Follow-up
40,073
0.008
± 0.008
0.005
1.0,-05
0.2
-
40,073