| Name | Label | Folder | |
|---|---|---|---|
|
gender
Gender
|
Gender | Administrative | |
|
sofid
Study of Osteoporotic Fractures (SOF) Public Data Release ID
|
Study of Osteoporotic Fractures (SOF) Public Data Release ID
The identifier used to link SOF datasets and polysomnography files. |
Administrative | |
|
ai_all
Arousal Index
|
Arousal Index
Total number of arousals per hour of sleep. Ratio of count of arousals to total sleep time in hours. |
Polysomnography (PSG)/Arousals | |
|
avgsat
Average oxygen saturation (SaO2) in sleep
|
Average oxygen saturation (SaO2) in sleep | Polysomnography (PSG)/Oxygen Saturation (SaO2) | |
|
minsat
Minimum oxygen saturation (SaO2) in sleep
|
Minimum oxygen saturation (SaO2) in sleep
Lowest oxygen saturation (SaO2)% during sleep |
Polysomnography (PSG)/Oxygen Saturation (SaO2) | |
|
longap
Longest apnea
|
Longest apnea | Polysomnography (PSG)/Respiratory Events/Apnea | |
|
oavgdur
Average obstructive apnea length, entire recording
|
Average obstructive apnea length, entire recording | Polysomnography (PSG)/Respiratory Events/Apnea/Obstructive | |
|
longhyp
Longest hypopnea, entire recording
|
Longest hypopnea, entire recording | Polysomnography (PSG)/Respiratory Events/Hypopnea | |
|
ahi_a0h3
Apnea-Hypopnea Index (AHI) >= 3% - number of [all apneas] and [hypopneas with >= 3% oxygen desaturation] per hour of sleep
|
Apnea-Hypopnea Index (AHI) >= 3% - number of [all apneas] and [hypopneas with >= 3% oxygen desaturation] per hour of sleep | Polysomnography (PSG)/Respiratory Events/Indexes | |
|
ahi_a0h3a
Apnea-Hypopnea Index (AHI) >= 3% - number of [all apneas] and [hypopneas with >= 3% oxygen desaturation or arousal] per hour of sleep
|
Apnea-Hypopnea Index (AHI) >= 3% - number of [all apneas] and [hypopneas with >= 3% oxygen desaturation or arousal] per hour of sleep | Polysomnography (PSG)/Respiratory Events/Indexes | |
|
ahi_a0h4
Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of sleep
|
Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of sleep | Polysomnography (PSG)/Respiratory Events/Indexes | |
|
ahi_a0h4a
Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation or arousal] per hour of sleep
|
Apnea-Hypopnea Index (AHI) >= 4% - number of [all apneas] and [hypopneas with >= 4% oxygen desaturation or arousal] per hour of sleep | Polysomnography (PSG)/Respiratory Events/Indexes | |
|
ahi_c0h3
Central Apnea-Hypopnea Index (CAHI) >= 3% - number of [central apneas] and [hypopneas with >= 3% oxygen desaturation] per hour of sleep
|
Central Apnea-Hypopnea Index (CAHI) >= 3% - number of [central apneas] and [hypopneas with >= 3% oxygen desaturation] per hour of sleep | Polysomnography (PSG)/Respiratory Events/Indexes | |
|
ahi_c0h3a
Central Apnea-Hypopnea Index (CAHI) >= 3% - number of [central apneas] and [hypopneas with >= 3% oxygen desaturation or arousal] per hour of sleep
|
Central Apnea-Hypopnea Index (CAHI) >= 3% - number of [central apneas] and [hypopneas with >= 3% oxygen desaturation or arousal] per hour of sleep | Polysomnography (PSG)/Respiratory Events/Indexes | |
|
ahi_c0h4
Central Apnea-Hypopnea Index (CAHI) >= 4% - number of [central apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of sleep
|
Central Apnea-Hypopnea Index (CAHI) >= 4% - number of [central apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of sleep | Polysomnography (PSG)/Respiratory Events/Indexes | |
|
ahi_c0h4a
Central Apnea-Hypopnea Index (CAHI) >= 4% - number of [central apneas] and [hypopneas with >= 4% oxygen desaturation or arousal] per hour of sleep
|
Central Apnea-Hypopnea Index (CAHI) >= 4% - number of [central apneas] and [hypopneas with >= 4% oxygen desaturation or arousal] per hour of sleep | Polysomnography (PSG)/Respiratory Events/Indexes | |
|
ahi_o0h3
Obstructive Apnea-Hypopnea Index (OAHI) >= 3% - number of [obstructive apneas] and [hypopneas with >= 3% oxygen desaturation] per hour of sleep
|
Obstructive Apnea-Hypopnea Index (OAHI) >= 3% - number of [obstructive apneas] and [hypopneas with >= 3% oxygen desaturation] per hour of sleep | Polysomnography (PSG)/Respiratory Events/Indexes | |
|
ahi_o0h3a
Obstructive Apnea-Hypopnea Index (OAHI) >= 3% - number of [obstructive apneas] and [hypopneas with >= 3% oxygen desaturation or arousal] per hour of sleep
|
Obstructive Apnea-Hypopnea Index (OAHI) >= 3% - number of [obstructive apneas] and [hypopneas with >= 3% oxygen desaturation or arousal] per hour of sleep | Polysomnography (PSG)/Respiratory Events/Indexes | |
|
ahi_o0h4
Obstructive Apnea-Hypopnea Index (OAHI) >= 4% - number of [obstructive apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of sleep
|
Obstructive Apnea-Hypopnea Index (OAHI) >= 4% - number of [obstructive apneas] and [hypopneas with >= 4% oxygen desaturation] per hour of sleep | Polysomnography (PSG)/Respiratory Events/Indexes | |
|
ahi_o0h4a
Obstructive Apnea-Hypopnea Index (OAHI) >= 4% - number of [obstructive apneas] and [hypopneas with >= 4% oxygen desaturation or arousal] per hour of sleep
|
Obstructive Apnea-Hypopnea Index (OAHI) >= 4% - number of [obstructive apneas] and [hypopneas with >= 4% oxygen desaturation or arousal] per hour of sleep | Polysomnography (PSG)/Respiratory Events/Indexes | |
|
cai0p
Central Apnea Index (CAI) all oxygen desaturations
|
Central Apnea Index (CAI) all oxygen desaturations | Polysomnography (PSG)/Respiratory Events/Indexes | |
|
oai0p
Obstructive Apnea Index (OAI) all oxygen desaturations
|
Obstructive Apnea Index (OAI) all oxygen desaturations | Polysomnography (PSG)/Respiratory Events/Indexes | |
|
rdi0p
Overall Respiratory Disturbance Index (RDI) all oxygen desaturations
|
Overall Respiratory Disturbance Index (RDI) all oxygen desaturations | Polysomnography (PSG)/Respiratory Events/Indexes | |
|
rdi3p
Overall Respiratory Disturbance Index (RDI) at >= 3% oxygen desaturation
|
Overall Respiratory Disturbance Index (RDI) at >= 3% oxygen desaturation
[(total number of apneas and hypopneas associated with >= 3% oxygen desaturation) / (hours of sleep)] |
Polysomnography (PSG)/Respiratory Events/Indexes | |
|
rdi3pa
Overall Respiratory Disturbance Index (RDI) at >= 3% oxygen desaturation or arousal
|
Overall Respiratory Disturbance Index (RDI) at >= 3% oxygen desaturation or arousal
[(total number of apneas and hypopneas with >= 3% oxygen desaturation or arousal) / (hours of sleep)] |
Polysomnography (PSG)/Respiratory Events/Indexes | |
|
rdi4p
Overall Respiratory Disturbance Index (RDI) at >= 4% oxygen desaturation
|
Overall Respiratory Disturbance Index (RDI) at >= 4% oxygen desaturation
Ratio of the count of all apneas (central and obstructive) and hypopneas associated with at least a >= 4% oxygen desaturation to the total sleep time expressed in hours |
Polysomnography (PSG)/Respiratory Events/Indexes | |
|
overall
Overall study grade
|
Overall study grade | Polysomnography (PSG)/Signal Quality | |
|
oximdur
Hours of usable oximetry
|
Hours of usable oximetry | Polysomnography (PSG)/Signal Quality | |
|
quoxim
Quality of oximetry
|
Quality of oximetry | Polysomnography (PSG)/Signal Quality | |
|
slp_eff
Sleep Efficiency
|
Sleep Efficiency
Percentage of time in bed that was spent sleeping, or the ratio of total sleep time to total time in bed, expressed as a percentage. |
Polysomnography (PSG)/Sleep Architecture | |
|
slpprdp
Total sleep time
|
Total sleep time | Polysomnography (PSG)/Sleep Architecture | |
|
slptime
Total sleep time
|
Total sleep time | Polysomnography (PSG)/Sleep Architecture | |
|
noplm
Number of periodic limb movements (PLMs) during sleep
|
Number of periodic limb movements (PLMs) during sleep | Polysomnography (PSG)/Sleep Events | |
|
plmaslp
Total number of periodic limb movements (PLMs) with arousal (in all sleep)
|
Total number of periodic limb movements (PLMs) with arousal (in all sleep) | Polysomnography (PSG)/Sleep Events/Limb Movements | |
|
posn
Position sensor working
|
Position sensor working
1=Position sensor working |
Polysomnography (PSG)/Sleep Events/Limb Movements | |
|
age_category
Age (categorical)
|
Age (categorical) | Administrative | |
|
race
Race
|
Race | Administrative | |
|
v8age
Age of participant
|
Age of participant
Participant ages greater than 89 have been recoded into 90 for de-identification purposes. |
Administrative | |
|
v8folall
Overall follow-up time since visit 8
|
Overall follow-up time since visit 8 | Administrative | |
|
visit
Visit number
|
Visit number
The Study of Osteoporotic Fractures (SOF) Visit where the data were collected/derived. |
Administrative | |
|
v4hipg
Hip
|
Hip
This variable was collected at a different timepoint than the 'Visit 8' sleep variables |
Anthropometry | |
|
v4wais
Waist
|
Waist
This variable was collected at a different timepoint than the 'Visit 8' sleep variables |
Anthropometry | |
|
v4wsthip
Waist to hip ratio
|
Waist to hip ratio
This variable was collected at a different timepoint than the 'Visit 8' sleep variables |
Anthropometry | |
|
v8bmi
Body Mass Index (BMI)
|
Body Mass Index (BMI) | Anthropometry | |
|
v8hght
Height
|
Height | Anthropometry | |
|
v8wght
Weight
|
Weight | Anthropometry | |
|
v1lbppls
Pulse lying down
|
Pulse lying down
This variable was collected at a different timepoint than the 'Visit 8' sleep variables |
Blood Pressure (BP) | |
|
v1lidias
Diastolic blood pressure (DBP) lying down
|
Diastolic blood pressure (DBP) lying down
This variable was collected at a different timepoint than the 'Visit 8' sleep variables |
Blood Pressure (BP) | |
|
v1lisys
Systolic blood pressure (SBP) lying down
|
Systolic blood pressure (SBP) lying down
This variable was collected at a different timepoint than the 'Visit 8' sleep variables |
Blood Pressure (BP) | |
|
v1sbppls
Pulse standing
|
Pulse standing
This variable was collected at a different timepoint than the 'Visit 8' sleep variables |
Blood Pressure (BP) | |
|
v1stddia
Diastolic blood pressure (DBP) standing up
|
Diastolic blood pressure (DBP) standing up
This variable was collected at a different timepoint than the 'Visit 8' sleep variables |
Blood Pressure (BP) | |
|
v1stdsys
Systolic blood pressure (SBP) standing up
|
Systolic blood pressure (SBP) standing up
This variable was collected at a different timepoint than the 'Visit 8' sleep variables |
Blood Pressure (BP) | |
|
v8ppls
Average pulse
|
Average pulse | Blood Pressure (BP) | |
|
v9sitdia
Diastolic blood pressure (DBP) sitting down
|
Diastolic blood pressure (DBP) sitting down
This variable was collected at a different timepoint than the 'Visit 8' sleep variables |
Blood Pressure (BP) | |
|
v9sitsys
Systolic blood pressure (SBP) sitting down
|
Systolic blood pressure (SBP) sitting down
This variable was collected at a different timepoint than the 'Visit 8' sleep variables |
Blood Pressure (BP) | |
|
v8brstca
Indicators of occurrence of breast cancer
|
Indicators of occurrence of breast cancer | Endpoints | |
|
v8dthash
Atherosclerosis cardio death
|
Atherosclerosis cardio death | Endpoints | |
|
v8dthchd
Ischemic heart disease (IHD) death
|
Ischemic heart disease (IHD) death | Endpoints | |
|
v8dthstk
Stroke death
|
Stroke death | Endpoints | |
|
v8dthsud
Ischemic heart disease (IHD) and sudden death
|
Ischemic heart disease (IHD) and sudden death | Endpoints | |
|
v1diabcl
Diabetes with insulin info
|
Diabetes with insulin info
This variable was collected at a different timepoint than the 'Visit 8' sleep variables |
Lifestyle | |
|
v1drink
In the past 12 months, have you had at least one drink of any kind of alcoholic beverage?
|
In the past 12 months, have you had at least one drink of any kind of alcoholic beverage?
This variable was collected at a different timepoint than the 'Visit 8' sleep variables |
Lifestyle | |
|
v1drwka
Drinks per week adjusted for atypical drinking
|
Drinks per week adjusted for atypical drinking
This variable was collected at a different timepoint than the 'Visit 8' sleep variables |
Lifestyle | |
|
v8dr30
During the last 30 days, have you had at least one drink of any kind of alcoholic beverage? (Including beer, wine, or mixed drinks such as martinis or manhattans.)
|
During the last 30 days, have you had at least one drink of any kind of alcoholic beverage? (Including beer, wine, or mixed drinks such as martinis or manhattans.) | Lifestyle | |
|
v8drwk30
Which one of these statements comes closest to describing how often you drank any alcoholic beverages in the last 30 days?
|
Which one of these statements comes closest to describing how often you drank any alcoholic beverages in the last 30 days? | Lifestyle | |
|
v8smok
Do you currently smoke cigarettes?
|
Do you currently smoke cigarettes? | Lifestyle | |
|
v1hyten
Hypertension status
|
Hypertension status
Defined by systolic blood pressure > 160, diastolic blood pressure > 90, or use of thiazides. This variable was collected at a different timepoint than the 'Visit 8' sleep variables. |
Medical History | |
|
v2echf
Has a doctor ever told you that you have congestive heart failure (CHF)?
|
Has a doctor ever told you that you have congestive heart failure (CHF)?
This variable was collected at a different timepoint than the 'Visit 8' sleep variables |
Medical History | |
|
v2enghrt
Has a doctor ever told you that you have an enlarged heart?
|
Has a doctor ever told you that you have an enlarged heart?
This variable was collected at a different timepoint than the 'Visit 8' sleep variables |
Medical History | |
|
v4ekg
Has a doctor ever told you that you have an abnormal EKG, ECG, or electrocardiogram?
|
Has a doctor ever told you that you have an abnormal EKG, ECG, or electrocardiogram?
This variable was collected at a different timepoint than the 'Visit 8' sleep variables |
Medical History | |
|
v4hrtdtx
Are you currently being treated for this condition by a doctor?
|
Are you currently being treated for this condition by a doctor?
This variable was collected at a different timepoint than the 'Visit 8' sleep variables |
Medical History | |
|
v4seiz
Has a doctor ever told you that you have seizures (fits or convulsions)?
|
Has a doctor ever told you that you have seizures (fits or convulsions)?
This variable was collected at a different timepoint than the 'Visit 8' sleep variables |
Medical History | |
|
v5scancr
In the last two years, has a doctor told you that you have cancer?
|
In the last two years, has a doctor told you that you have cancer?
This variable was collected at a different timepoint than the 'Visit 8' sleep variables |
Medical History | |
|
v6sangin
Has a doctor or other health care provider ever told you that you had angina?
|
Has a doctor or other health care provider ever told you that you had angina?
This variable was collected at a different timepoint than the 'Visit 8' sleep variables |
Medical History | |
|
v6scong
Has a doctor or other health care provider ever told you that you have congestive heart failure (CHF), enlarged heart?
|
Has a doctor or other health care provider ever told you that you have congestive heart failure (CHF), enlarged heart?
This variable was collected at a different timepoint than the 'Visit 8' sleep variables |
Medical History | |
|
v6scopd
Has a doctor or other health care provider ever told you that you have chronic obstructive lung disease (COPD), chronic bronchitis, asthma, emphysema?
|
Has a doctor or other health care provider ever told you that you have chronic obstructive lung disease (COPD), chronic bronchitis, asthma, emphysema?
This variable was collected at a different timepoint than the 'Visit 8' sleep variables |
Medical History | |
|
v6sdepr
Has a doctor or other health care provider ever told you that you have depression?
|
Has a doctor or other health care provider ever told you that you have depression?
This variable was collected at a different timepoint than the 'Visit 8' sleep variables |
Medical History | |
|
v6sdiab
Has a doctor or other health care provider ever told you that you have diabetes?
|
Has a doctor or other health care provider ever told you that you have diabetes?
This variable was collected at a different timepoint than the 'Visit 8' sleep variables |
Medical History | |
|
v6sheart
Has a doctor or other health care provider ever told you that you had a heart attack, coronary, or myocardial infarction (MI)?
|
Has a doctor or other health care provider ever told you that you had a heart attack, coronary, or myocardial infarction (MI)?
This variable was collected at a different timepoint than the 'Visit 8' sleep variables |
Medical History | |
|
v6shyper
Has a doctor or other health care provider ever told you that you have high blood pressure?
|
Has a doctor or other health care provider ever told you that you have high blood pressure?
This variable was collected at a different timepoint than the 'Visit 8' sleep variables |
Medical History | |
|
v6sohrt
Has a doctor or other health care provider ever told you that you have other heart disease?
|
Has a doctor or other health care provider ever told you that you have other heart disease?
This variable was collected at a different timepoint than the 'Visit 8' sleep variables |
Medical History | |
|
v6sstrk
Has a doctor or other health care provider ever told you that you had a stroke?
|
Has a doctor or other health care provider ever told you that you had a stroke?
This variable was collected at a different timepoint than the 'Visit 8' sleep variables |
Medical History | |
|
v8ecancr
Has a doctor or other health care provider ever told you that you have cancer?
|
Has a doctor or other health care provider ever told you that you have cancer? | Medical History | |
|
v8ecc
Has a doctor or other health care provider ever told you that you have colon cancer?
|
Has a doctor or other health care provider ever told you that you have colon cancer? | Medical History | |
|
v8econg
Has a doctor or other health care provider ever told you that you have congestive heart failure (CHF), enlarged heart?
|
Has a doctor or other health care provider ever told you that you have congestive heart failure (CHF), enlarged heart? | Medical History | |
|
v8ecopd
Has a doctor or other health care provider ever told you that you have chronic obstructive lung disease (COPD), chronic bronchitis, asthma, emphysema?
|
Has a doctor or other health care provider ever told you that you have chronic obstructive lung disease (COPD), chronic bronchitis, asthma, emphysema? | Medical History | |
|
v8edepr
Has a doctor or other health care provider ever told you that you have depression?
|
Has a doctor or other health care provider ever told you that you have depression? | Medical History | |
|
v8ediab
Has a doctor or other health care provider ever told you that you have diabetes?
|
Has a doctor or other health care provider ever told you that you have diabetes? | Medical History | |
|
v8eheart
Has a doctor or other health care provider ever told you that you had a heart attack, coronary, or myocardial infarction (MI)?
|
Has a doctor or other health care provider ever told you that you had a heart attack, coronary, or myocardial infarction (MI)? | Medical History | |
|
v8ehyper
Has a doctor or other health care provider ever told you that you have high blood pressure?
|
Has a doctor or other health care provider ever told you that you have high blood pressure? | Medical History | |
|
v8eohrt
Has a doctor or other health care provider ever told you that you have other heart disease?
|
Has a doctor or other health care provider ever told you that you have other heart disease? | Medical History | |
|
v8estrk
Has a doctor or other health care provider ever told you that you had a stroke?
|
Has a doctor or other health care provider ever told you that you had a stroke? | Medical History | |
|
v9eangio
Blockage of the coronary arteries requiring angioplasty or stenting procedure?
|
Blockage of the coronary arteries requiring angioplasty or stenting procedure?
This variable was collected at a different timepoint than the 'Visit 8' sleep variables |
Medical History | |
|
v9epervd
Peripheral vascular disease (PVD) (intermittent claudication or pain in your legs from a blockage of the arteries)?
|
Peripheral vascular disease (PVD) (intermittent claudication or pain in your legs from a blockage of the arteries)?
This variable was collected at a different timepoint than the 'Visit 8' sleep variables |
Medical History | |
|
datalost
Was any data lost?
|
Was any data lost? | Polysomnography (PSG)/Administrative | |
|
lighoff
Participant reported time to bed
|
Participant reported time to bed
24-hour clock time written as integer (e.g. 0-2359). |
Polysomnography (PSG)/Administrative | |
|
npflow
Flow limitation
|
Flow limitation
1=flow limitation observed |
Polysomnography (PSG)/Administrative | |
|
outlier
Were outliers found (real)
|
Were outliers found (real) | Polysomnography (PSG)/Administrative | |
|
sclonp
Lights on - end of study set by scorer
|
Lights on - end of study set by scorer | Polysomnography (PSG)/Administrative | |
|
scloutp
Lights on set by scorer
|
Lights on set by scorer | Polysomnography (PSG)/Administrative |