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Ankle Brachial Index (ABI) is the average ankle to arm systolic pressures as measured from the left and right sides. The higher of the two ankle measures on the same side is divided by the higher of the two systolic arm pressures to derive the right and left side ABI values.

Ankle Brachial Index (ABI) is the average ankle to arm systolic pressures as measured from the left and right sides. The higher of the two ankle measures on the same side is divided by the higher of the two systolic arm pressures to derive the right and left side ABI values.

Mean of two standard seated blood pressure measurements on the night of the PSG. If repeat measurements were taken, the mean of the closest two measurements.

Mean of two standard seated blood pressure measurements on the night of the PSG. If repeat measurements were taken, the mean of the closest two measurements.

Sleep latency was scored by two scorers. It is the average of the two scores. Variable from a Multiple Sleep Latency Test (MSLT), Roehrs & Roth 1992 (PubMed ID: 1552009).Search for all Multiple Sleep Latency Test variables within this dataset

Sleep latency was scored by two scorers. It is the average of the two scores. Variable from a Multiple Sleep Latency Test (MSLT), Roehrs & Roth 1992 (PubMed ID: 1552009).Search for all Multiple Sleep Latency Test variables within this dataset

Sleep latency was scored by two scorers. It is the average of the two scores. Variable from a Multiple Sleep Latency Test (MSLT), Roehrs & Roth 1992 (PubMed ID: 1552009).Search for all Multiple Sleep Latency Test variables within this dataset

Sleep latency was scored by two scorers. It is the average of the two scores. Variable from a Multiple Sleep Latency Test (MSLT), Roehrs & Roth 1992 (PubMed ID: 1552009).Search for all Multiple Sleep Latency Test variables within this dataset

Sleep latency was scored by two scorers. It is the average of the two scores. Clinical MSLT only: the 5th nap was only conducted if the participant had REM sleep in one of the first 4 naps. Variable from a Multiple Sleep Latency Test (MSLT), Roehrs & Roth 1992 (PubMed ID: 1552009).Search for all Multiple Sleep Latency Test variables within this dataset

Body Mass Index (BMI) at Sleep Heart Health Study Visit Two (SHHS2)

Age in years at the time of the Sleep Heart Health Study Visit Two (SHHS2) visit. Values equal to 90 indicate an age of 90 or greater.

Average resting diastolic blood pressure of two measurements collected from the upper arm in a single clinic visit. When more than two measurements were collected, the average was calculated using the second and third measurements. In cases where either of the measurements was missing, the average was calculated discarding the missing value. Harmonized by the NSRR team to align with TOPMed and BioDataCatalyst standards. Source: :diasbp:

Average resting systolic blood pressure of two measurements collected from the upper arm in a single clinic visit. When more than two measurements were collected, the average was calculated using the second and third measurements. In cases where either of the measurements was missing, the average was calculated discarding the missing value. Harmonized by the NSRR team to align with TOPMed and BioDataCatalyst standards. Source: :systbp:

During the last two weeks, did you take any aspirin or aspirin-containing medicines such as Bufferin, Anacin, or Ascriptin?

a. If "Yes," on how many days during the last two weeks did you take this medicine?

Current Smoking Status at the Sleep Heart Health Study Visit Two (SHHS2)

Scorer observed periodic large breaths during study. When very large breaths (one or two) occur periodically (mostly on the inductance channels) between runs of fairly normal breaths for a duration of at least 10 minutes.

... signal file (.EDF) and two versions of the event ... events are represented by two different tags in the ...

... a computer monitor in two passes. First, computer generated ... manually scored in the two passes: During the first ...

... the epoch. - When two stages of sleep are ... (*). - Portions of two epochs may not be ...

... effects mimicking spindles are two or more of the ... provided with our montage. Two patterns are commonly seen: ...

... one long event or two short events (i.e., after ... then a decrease again, two events are marked; otherwise ...

... are commonly divided into two broad categories: time domain ... were excluded. In addition, two other cases with less ...

... consisted of the following: two electroencephalograms (C3/C2 and C4/C1), ... signal file (.EDF) and two versions of the event ...

... signal file (.EDF) and two versions of the event ... events are represented by two different tags in the ...