avgsat rdi3p
Name
pctlt90
Label
Calculated - percent time < 90% desaturation
Description

Percent of sleep time with oxygen saturation < 90%. Ratio of the number of minutes with oxygen saturation under 90% to the total sleep time expressed in hours. [100*(Total Number of minutes with SaO2 < 90) / (total sleep time)]

Units
percent
Type
numeric
Visit vs Calculated - percent time < 90% desaturation
N Mean StdDev Median Min Max Unknown Total
Peds - - - - - - - -
Teenz - - - - - - - -
TREC 515 0.08 ± 1.8 0.0 0.0 41.0 2 517
Age at time of TREC visit vs Calculated - percent time < 90% desaturation
TREC
N Mean StdDev Median Min Max Unknown Total
Total 515 0.08 ± 1.8 0.0 0.0 41.0 2 517
16.1 to 17.4 years 130 0.008 ± 0.09 0.0 0.0 1.0 - 130
17.4 to 17.7 years 128 0.0 ± 0.0 0.0 0.0 0.0 1 129
17.7 to 17.9 years 129 0.0 ± 0.0 0.0 0.0 0.0 - 129
17.9 to 19.6 years 128 0.3 ± 3.6 0.0 0.0 41.0 1 129
Male Gender vs Calculated - percent time < 90% desaturation
TREC
N Mean StdDev Median Min Max Unknown Total
Total 515 0.08 ± 1.8 0.0 0.0 41.0 2 517
No 255 0.004 ± 0.06 0.0 0.0 1.0 1 256
Yes 260 0.2 ± 2.5 0.0 0.0 41.0 1 261
Race vs Calculated - percent time < 90% desaturation
TREC
N Mean StdDev Median Min Max Unknown Total
Total 515 0.08 ± 1.8 0.0 0.0 41.0 2 517
White 307 0.1 ± 2.3 0.0 0.0 41.0 2 309
Black 185 0.0 ± 0.0 0.0 0.0 0.0 - 185
Other 23 0.0 ± 0.0 0.0 0.0 0.0 - 23