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NSRR
AGE_AT_SLEEP_STUDY_DAYS - NCHSDB Variables
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v0.3.0
nchsdb
variables
Demographics
age_at_sleep_study_days
age_at_sleep_study_days
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bp_systolic
birth_date
Name
age_at_sleep_study_days
Label
The age of the patient in days at the time of the sleep study
Units
days
Type
integer
Encounter number vs The age of the patient in days at the time of the sleep study
N
Mean
StdDev
Median
Min
Max
Unknown
Total
First overnight sleep study
3,673
3,221.8
± 2,145.8
2,907.0
6.0
21,313.0
-
3,673
Second overnight sleep study
273
3,289.0
± 2,480.2
3,112.0
13.0
12,395.0
-
273
Third overnight sleep study
35
2,332.0
± 2,266.8
1,646.0
76.0
7,111.0
-
35
Fourth overnight sleep study
2
497.0
± 213.5
497.0
346.0
648.0
-
2
Fifth overnight sleep study
1
483.0
-
483.0
483.0
483.0
-
1