My sleep doc used ResScan for a six month summary from the S9 SD card. AHI = 0.1.
LEAK
median 0.0 95th %ile = 12 Maximum = 14.5
PRESSURE
median = 7.8 95th%ile = 10.4 Maximum = 10.9
I need to go back to high school math because I cannot understand the median values in the Leak and Pressure. How can the median be zero ?
Huh? What? Leak =12 Max = 14.4, BUT Median = 0
Huh? What? Leak =12 Max = 14.4, BUT Median = 0
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Mask: Mirage™ FX Nasal CPAP Mask with Headgear |
Humidifier: S9™ Series H5i™ Heated Humidifier with Climate Control |
Re: Huh? What? Leak =12 Max = 14.4, BUT Median = 0
As I understand it, the way the software is calculating "median" is from the commonest value of all the data points it collects.
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Mask: AirFit™ P10 Nasal Pillow CPAP Mask with Headgear |
Humidifier: S9™ Series H5i™ Heated Humidifier with Climate Control |
Additional Comments: Sleepyhead SW. NeilMed and Alkalol Nasal rinses. Veramyst. AutoPAP 11-20 cms. Started June '14, untreated AHI 31-38, with PAP around 1. |
Re: Huh? What? Leak =12 Max = 14.4, BUT Median = 0
that would be *wrong*englandsf wrote:As I understand it, the way the software is calculating "median" is from the commonest value of all the data points it collects.
Get OSCAR
Accounts to put on the foe list: dataq1, clownbell, gearchange, lynninnj, mper!?, DreamDiver, Geer1, almostadoctor, sleepgeek, ajack, stom, mogy, D.H., They often post misleading, timewasting stuff.
Accounts to put on the foe list: dataq1, clownbell, gearchange, lynninnj, mper!?, DreamDiver, Geer1, almostadoctor, sleepgeek, ajack, stom, mogy, D.H., They often post misleading, timewasting stuff.
Re: Huh? What? Leak =12 Max = 14.4, BUT Median = 0
for those of us that skipped stats in school, (including me) our resident math professor has written up a remedial stats course:Physician wrote:My sleep doc used ResScan for a six month summary from the S9 SD card. AHI = 0.1.
LEAK
median 0.0 95th %ile = 12 Maximum = 14.5
PRESSURE
median = 7.8 95th%ile = 10.4 Maximum = 10.9
I need to go back to high school math because I cannot understand the median values in the Leak and Pressure. How can the median be zero ?
http://adventures-in-hosehead-land.blog ... de-to.html
Get OSCAR
Accounts to put on the foe list: dataq1, clownbell, gearchange, lynninnj, mper!?, DreamDiver, Geer1, almostadoctor, sleepgeek, ajack, stom, mogy, D.H., They often post misleading, timewasting stuff.
Accounts to put on the foe list: dataq1, clownbell, gearchange, lynninnj, mper!?, DreamDiver, Geer1, almostadoctor, sleepgeek, ajack, stom, mogy, D.H., They often post misleading, timewasting stuff.
Re: Huh? What? Leak =12 Max = 14.4, BUT Median = 0
If you were to line up all of the readings, in a column, then sort the column in either ascending or descending order, the median would be the one that's exactly in the middle of the list (take the average of the two middle ones, if you have an even number of readings).
For example, if you have readings of
0
0
0
0
0
0
0
0
6
9
14.4
then the median is 0, but the max if 14.4 (not sure what Leak measures, so I can't comment on it).
For example, if you have readings of
0
0
0
0
0
0
0
0
6
9
14.4
then the median is 0, but the max if 14.4 (not sure what Leak measures, so I can't comment on it).