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Home Positive Airway Pressure

Name Label Folder
avgpapuse
Average Continuous Positive Airway Pressure (CPAP) use per night
Average Continuous Positive Airway Pressure (CPAP) use per night

Computed as the total time of Continuous Positive Airway Pressure (CPAP) use divided by the total number of days in the interval. Follow-up periods of 30 days were used at Month 1 and Month 3.

Adherence
ahi
Final Apnea-Hypopnea Index (AHI)
Final Apnea-Hypopnea Index (AHI)

Determined from the diagnostic sleep study.

Administrative
clusterid
Recoded Site Identifier
Recoded Site Identifier

The original site identifier was removed from the dataset because it was identifiable.

Administrative
nsrrid
NSRR Subject Identifier
NSRR Subject Identifier

This identifer links the subject's data and files.

Administrative
treatmentarm
Treatment arm
Treatment arm

Subjects were randomized to a treatment arm (i.e. diagnostic study type) at the end of the Baseline Visit.

Administrative
bmi
Body mass index (BMI)
Body mass index (BMI) Anthropometry
diastolic
Diastolic blood pressure
Diastolic blood pressure

Average of the 2nd and 3rd resting diastolic blood pressure readings.

Blood Pressure
systolic
Systolic blood pressure
Systolic blood pressure

Average of the 2nd and 3rd resting systolic blood pressure readings.

Blood Pressure
age
Age at baseline visit
Age at baseline visit

The age of the subject at the time of the baseline visit and randomization.

Demographics
ethnicity
Ethnicity
Ethnicity Demographics
gender
Gender
Gender Demographics
race3
Race
Race

Self-reported race collapsed into three (3) categories.

Demographics
aphypi
Apnea-Hypopnea Index (AHI) (home test)
Apnea-Hypopnea Index (AHI) (home test) Polysomnography/Home
avgbpn
Average heart rate (home test)
Average heart rate (home test) Polysomnography/Home
avgsat
Average oxygen saturation (home test)
Average oxygen saturation (home test) Polysomnography/Home
index_time
Total recording time (home test)
Total recording time (home test)

This time period is used to calculate indices and other averages.

Polysomnography/Home
ahi_d
Apnea-Hypopnea Index (AHI) (split-night, diagnostic)
Apnea-Hypopnea Index (AHI) (split-night, diagnostic) Polysomnography/Lab
ahi_full
Apnea-Hypopnea Index (AHI) (full-night)
Apnea-Hypopnea Index (AHI) (full-night) Polysomnography/Lab
ahi_t
Apnea-Hypopnea Index (AHI) (split-night, treatment)
Apnea-Hypopnea Index (AHI) (split-night, treatment) Polysomnography/Lab
avghr
Average heart rate (full-night)
Average heart rate (full-night) Polysomnography/Lab
avghr_d
Average heart rate (split-night, diagnostic)
Average heart rate (split-night, diagnostic) Polysomnography/Lab
avghr_t
Average heart rate (split-night, treatment)
Average heart rate (split-night, treatment) Polysomnography/Lab
avgsao2
Average oxygen saturation (full-night)
Average oxygen saturation (full-night) Polysomnography/Lab
avgsao2_d
Average oxygen saturation (split-night, diagnostic)
Average oxygen saturation (split-night, diagnostic) Polysomnography/Lab
avgsao2_t
Average oxygen saturation (split-night, treatment)
Average oxygen saturation (split-night, treatment) Polysomnography/Lab
slpprd_d
Total sleep time (split-night, diagnostic)
Total sleep time (split-night, diagnostic)

This time period is used to calculate indices and other averages.

Polysomnography/Lab
slpprdp
Total sleep time (full-night)
Total sleep time (full-night)

This time period is used to calculate indices and other averages.

Polysomnography/Lab
slpprd_t
Total sleep time (split-night, treatment)
Total sleep time (split-night, treatment)

This time period is used to calculate indices and other averages.

Polysomnography/Lab
cal_total
Calgary Sleep Apnea Quality of Life Index (SAQLI): Total Score
Calgary Sleep Apnea Quality of Life Index (SAQLI): Total Score Questionnaires/Calgary
esstotal
Epworth Sleepiness Scale (ESS): Total Score
Epworth Sleepiness Scale (ESS): Total Score

Sum of eight (8) individual items

Questionnaires/Epworth
fosq_global
Functional Outcomes of Sleep Questionnaire (FOSQ): Global Score
Functional Outcomes of Sleep Questionnaire (FOSQ): Global Score

Mean of the subscales multiplied by five (5).

Questionnaires/FOSQ
sf36_mcs
Short Form (36) Health Survey (SF-36): Standardized Mental Component Scale
Short Form (36) Health Survey (SF-36): Standardized Mental Component Scale

Derived from the Short Form (36) Health Survey (SF-36), a patient-reported survey of patient health.

Questionnaires/SF-36
sf36_pcs
Short Form (36) Health Survey (SF-36): Standardized Physical Component Scale
Short Form (36) Health Survey (SF-36): Standardized Physical Component Scale

Derived from the Short Form (36) Health Survey (SF-36), a patient-reported survey of patient health.

Questionnaires/SF-36
ablation
Ablation at optimal pressure (Apnea-Hypopnea Index (AHI) < 10)
Ablation at optimal pressure (Apnea-Hypopnea Index (AHI) < 10) Administrative
pressure
Optimal titration pressure
Optimal titration pressure Administrative
ttt
Time to treatment
Time to treatment

The difference between the date device delivered and date of enrollment.

Administrative
visit
Visit number
Visit number Administrative
acceptance
Accepted Automatic Positive Airway Pressure (APAP) equipment (Has Continuous Positive Airway Pressure (CPAP) prescription)
Accepted Automatic Positive Airway Pressure (APAP) equipment (Has Continuous Positive Airway Pressure (CPAP) prescription) Administrative/CONSORT Diagram
ahige15
Apnea-Hypopnea Index (AHI) >= 15 on diagnostic sleep study
Apnea-Hypopnea Index (AHI) >= 15 on diagnostic sleep study Administrative/CONSORT Diagram
completedm1
Completed Month 1 Follow-up Visit
Completed Month 1 Follow-up Visit Administrative/CONSORT Diagram
completedm1m3
Completed Month 1 and Month 3 Follow-up Visits
Completed Month 1 and Month 3 Follow-up Visits Administrative/CONSORT Diagram
completedm3
Completed Month 3 Follow-up Visit
Completed Month 3 Follow-up Visit Administrative/CONSORT Diagram
crossover
Crossed-over to Lab Arm from Home Arm
Crossed-over to Lab Arm from Home Arm Administrative/CONSORT Diagram
diagnostic
Received diagnostic sleep study
Received diagnostic sleep study Administrative/CONSORT Diagram
eligible
Eligible for treatment (Apnea-Hypopnea Index (AHI) >= 15 and not withdrawn)
Eligible for treatment (Apnea-Hypopnea Index (AHI) >= 15 and not withdrawn) Administrative/CONSORT Diagram
titrated
Titrated for optimal pressure
Titrated for optimal pressure Administrative/CONSORT Diagram
heightcm
Height
Height Anthropometry
neckcm
Neck circumference
Neck circumference Anthropometry
waistcm
Waist circumference
Waist circumference Anthropometry
weightkg
Weight
Weight Anthropometry
dxadhd
Diagnosed with attention deficit hyperactivity disorder (ADHD)
Diagnosed with attention deficit hyperactivity disorder (ADHD) Medical History
dxasth
Diagnosed with asthma
Diagnosed with asthma Medical History
dxca
Diagnosed with cancer
Diagnosed with cancer Medical History
dxcatyp
If diagnosed with cancer: Cancer type
If diagnosed with cancer: Cancer type Medical History
dxchd
Diagnosed with coronary heart disease (angina, heart attack)
Diagnosed with coronary heart disease (angina, heart attack) Medical History
dxchf
Diagnosed with congestive heart failure
Diagnosed with congestive heart failure Medical History
dxdep
Diagnosed with depression
Diagnosed with depression Medical History
dxdiab
Diagnosed with diabetes
Diagnosed with diabetes Medical History
dxemph
Diagnosed with emphysema
Diagnosed with emphysema Medical History
dxgerd
Diagnosed with gastroesophageal reflux disease (GERD)
Diagnosed with gastroesophageal reflux disease (GERD) Medical History
dxhay
Diagnosed with hay fever / nasal congestion / sinusitis
Diagnosed with hay fever / nasal congestion / sinusitis Medical History
dxhich
Diagnosed with high cholesterol
Diagnosed with high cholesterol Medical History
dxhtn
Diagnosed with hypertension (high blood pressure)
Diagnosed with hypertension (high blood pressure) Medical History
dxhyperthy
Diagnosed with hyperthyroidism (over-active thyroid)
Diagnosed with hyperthyroidism (over-active thyroid) Medical History
dxhypothy
Diagnosed with hypothyroidism (under-active thyroid)
Diagnosed with hypothyroidism (under-active thyroid) Medical History
dxkidney
Diagnosed with kidney disease
Diagnosed with kidney disease Medical History
dxliver
Diagnosed with liver disease
Diagnosed with liver disease Medical History
dxplhtn
Diagnosed with pulmonary hypertension
Diagnosed with pulmonary hypertension Medical History
dxseiz
Diagnosed with seizures / epilepsy
Diagnosed with seizures / epilepsy Medical History
dxstroke
Diagnosed with stroke
Diagnosed with stroke Medical History
satlt90p
Portion of sleep time spent with oxygen saturation less than 90% (home test)
Portion of sleep time spent with oxygen saturation less than 90% (home test) Polysomnography/Home
pctrem_d
Portion of sleep time spent in rapid eye movement sleep (REM) (split-night, diagnostic)
Portion of sleep time spent in rapid eye movement sleep (REM) (split-night, diagnostic) Polysomnography/Lab
pctrem_t
Portion of sleep time spent in rapid eye movement sleep (REM) (split-night, treatment)
Portion of sleep time spent in rapid eye movement sleep (REM) (split-night, treatment) Polysomnography/Lab
pctsa90h
Portion of sleep time spent with oxygen saturation less than 90% (full-night)
Portion of sleep time spent with oxygen saturation less than 90% (full-night) Polysomnography/Lab
pctsa90p_d
Portion of sleep time spent with oxygen saturation less than 90% (split-night, diagnostic)
Portion of sleep time spent with oxygen saturation less than 90% (split-night, diagnostic) Polysomnography/Lab
pctsa90p_t
Portion of sleep time spent with oxygen saturation less than 90% (split-night, treatment)
Portion of sleep time spent with oxygen saturation less than 90% (split-night, treatment) Polysomnography/Lab
pctstg1_d
Portion of sleep time spent in Stage 1 (split-night, diagnostic)
Portion of sleep time spent in Stage 1 (split-night, diagnostic) Polysomnography/Lab
pctstg1_t
Portion of sleep time spent in Stage 1 (split-night, treatment)
Portion of sleep time spent in Stage 1 (split-night, treatment) Polysomnography/Lab
pctstg2_d
Portion of sleep time spent in Stage 2 (split-night, diagnostic)
Portion of sleep time spent in Stage 2 (split-night, diagnostic) Polysomnography/Lab
pctstg2_t
Portion of sleep time spent in Stage 2 (split-night, treatment)
Portion of sleep time spent in Stage 2 (split-night, treatment) Polysomnography/Lab
pctstg34_d
Portion of sleep time spent in Stage 3/4 (split-night, diagnostic)
Portion of sleep time spent in Stage 3/4 (split-night, diagnostic) Polysomnography/Lab
pctstg34_t
Portion of sleep time spent in Stage 3/4 (split-night, treatment)
Portion of sleep time spent in Stage 3/4 (split-night, treatment) Polysomnography/Lab
slpeff_d
Sleep efficiency (split-night, diagnostic)
Sleep efficiency (split-night, diagnostic) Polysomnography/Lab
slpeffp
Sleep efficiency (full-night)
Sleep efficiency (full-night) Polysomnography/Lab
slpeff_t
Sleep efficiency (split-night, treatment)
Sleep efficiency (split-night, treatment) Polysomnography/Lab
tmremp
Portion of sleep time spent in rapid eye movement sleep (REM) (full-night)
Portion of sleep time spent in rapid eye movement sleep (REM) (full-night) Polysomnography/Lab
tmstg1p
Portion of sleep time spent in Stage 1 (full-night)
Portion of sleep time spent in Stage 1 (full-night) Polysomnography/Lab
tmstg2p
Portion of sleep time spent in Stage 2 (full-night)
Portion of sleep time spent in Stage 2 (full-night) Polysomnography/Lab
tmstg34p
Portion of sleep time spent in Stage 3/4 (full-night)
Portion of sleep time spent in Stage 3/4 (full-night) Polysomnography/Lab
fosq_actlev
Functional Outcomes of Sleep Questionnaire (FOSQ): Activity Level Score
Functional Outcomes of Sleep Questionnaire (FOSQ): Activity Level Score

Mean of items 5, 14-16, and 22-26.

Questionnaires/FOSQ
fosq_genprd
Functional Outcomes of Sleep Questionnaire (FOSQ): General Productivity Score
Functional Outcomes of Sleep Questionnaire (FOSQ): General Productivity Score

Mean of items 1-4 and 8-11.

Questionnaires/FOSQ
fosq_sexual
Functional Outcomes of Sleep Questionnaire (FOSQ): Sexual Activity Score
Functional Outcomes of Sleep Questionnaire (FOSQ): Sexual Activity Score

Mean of items 27-30.

Questionnaires/FOSQ
fosq_socout
Functional Outcomes of Sleep Questionnaire (FOSQ): Social Outcome Score
Functional Outcomes of Sleep Questionnaire (FOSQ): Social Outcome Score

Mean of items 12-13.

Questionnaires/FOSQ
fosq_vigiln
Functional Outcomes of Sleep Questionnaire (FOSQ): Vigilance Score
Functional Outcomes of Sleep Questionnaire (FOSQ): Vigilance Score

Mean of items 6-7 and 17-21.

Questionnaires/FOSQ
agg_ment
Short Form (36) Health Survey (SF-36): Aggregate Mental Score
Short Form (36) Health Survey (SF-36): Aggregate Mental Score

Derived from the Short Form (36) Health Survey (SF-36), a patient-reported survey of patient health.

Questionnaires/SF-36
agg_phys
Short Form (36) Health Survey (SF-36): Aggregate Physical Score
Short Form (36) Health Survey (SF-36): Aggregate Physical Score

Derived from the Short Form (36) Health Survey (SF-36), a patient-reported survey of patient health.

Questionnaires/SF-36
bp_norm
Short Form (36) Health Survey (SF-36): Bodily Pain Norm Score
Short Form (36) Health Survey (SF-36): Bodily Pain Norm Score

Derived from the Short Form (36) Health Survey (SF-36), a patient-reported survey of patient health.

Questionnaires/SF-36
gh_norm
Short Form (36) Health Survey (SF-36): General Health Perception Norm Score
Short Form (36) Health Survey (SF-36): General Health Perception Norm Score

Derived from the Short Form (36) Health Survey (SF-36), a patient-reported survey of patient health.

Questionnaires/SF-36
mh_norm
Short Form (36) Health Survey (SF-36): Mental Health Norm Score
Short Form (36) Health Survey (SF-36): Mental Health Norm Score

Derived from the Short Form (36) Health Survey (SF-36), a patient-reported survey of patient health.

Questionnaires/SF-36
pf_norm
Short Form (36) Health Survey (SF-36): Physical Functioning Norm Score
Short Form (36) Health Survey (SF-36): Physical Functioning Norm Score

Derived from the Short Form (36) Health Survey (SF-36), a patient-reported survey of patient health.

Questionnaires/SF-36