psg - Search - Sleep Data - National Sleep Research Resource

Polysomnography (PSG) Quality Assessment: Arousals unreliable (Rapid eye movement sleep (REM))

remarunrel under Sleep Monitoring/Polysomnography/Signal Quality in SOF variables

Due to signal problems, scorer was unable to reliably assess arousals in stage rapid eye movement sleep (REM). The scoring of arousals in stage rapid eye movement sleep (REM) was determined to be unreliable.

Polysomnography (PSG) Quality Assessment: Rapid eye movement sleep (REM)/Non-rapid eye movement sleep (NREM) scoring unreliable

remnrempr under Sleep Monitoring/Polysomnography/Signal Quality in SOF variables

Scorer noted that there was a problem differentiating rapid eye movement sleep (REM) and non-rapid eye movement sleep (NREM).

Polysomnography (PSG) Quality Assessment: Respiratory scoring problems

respevpr under Sleep Monitoring/Polysomnography/Signal Quality in SOF variables

Due to signal problems, scorer noted that there was a problem scoring respiratory events.

Polysomnography (PSG) Quality Assessment: Sleep wake scoring

slewake under Sleep Monitoring/Polysomnography/Signal Quality in SOF variables

Study was scored sleep/wake rather than with full sleep staging. This assessment is made by the scorer if there is not sufficient quality on EEG leads to do full R&K scoring. (0=no (full scoring); 1=yes (sleep/wake only))

Polysomnography (PSG) Quality Assessment: Stage 1/Stage 2 scoring unreliable

stg1stg2pr under Sleep Monitoring/Polysomnography/Signal Quality in SOF variables

Scorer noted that there was a problem differentiating stage 1 and stage 2 sleep.

Polysomnography (PSG) Quality Assessment: Stage 2/Stage 3-4 scoring unreliable

stg2stg3pr under Sleep Monitoring/Polysomnography/Signal Quality in SOF variables

Scorer noted that there was a problem differentiating stage 2 and stage 3/4 sleep.

Polysomnography (PSG) Quality Assessment: Unusual staging

unustgou under Sleep Monitoring/Polysomnography/Signal Quality in SOF variables

Scorer observed unusual sleep staging. This is noted when there is no sleep in any particular stage (eg. no rapid eye movement sleep (REM)).

Polysomnography (PSG) Quality Assessment: Wake/Sleep scoring unreliable

wakslepr under Sleep Monitoring/Polysomnography/Signal Quality in SOF variables

Scorer noted that there was a problem differentiating stage wake from stage sleep.

Creatinine

creatinine under Clinical Data/Laboratory Tests in WSC variables

Measure of creatinine level in blood, obtained from fasting blood draw on the morning after the overnight PSG

Glucose

glucose under Clinical Data/Laboratory Tests in WSC variables

Measure of glucose level in blood, obtained from fasting blood draw on the morning after the overnight PSG

HDL Cholesterol

hdl under Clinical Data/Laboratory Tests in WSC variables

Measure of HDL level in blood, obtained from fasting blood draw on the morning after the overnight PSG

LDL Cholesterol

ldl under Clinical Data/Laboratory Tests in WSC variables

Measure of LDL level in blood, obtained from fasting blood draw on the morning after the overnight PSG

Total cholesterol

total_cholesterol under Clinical Data/Laboratory Tests in WSC variables

Measure of total cholesterol level in blood, obtained from fasting blood draw on the morning after the overnight PSG

Triglycerides

triglycerides under Clinical Data/Laboratory Tests in WSC variables

Measure of triglyceride level in blood, obtained from fasting blood draw on the morning after the overnight PSG

Uric acid

uric_acid under Clinical Data/Laboratory Tests in WSC variables

Measure of uric acid level in blood, obtained from fasting blood draw on the morning after the overnight PSG

First blood pressure from left ankle

ankle_left1 under Clinical Data/Vital Signs in WSC variables