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cp02 under Sleep Questionnaires/Sleep Disturbance in SHHS variables
In the past year, how often, on average, have you been awakened with chest pain or tightness?
mchest1 under Anthropometry in CFS variables
mchest2 under Anthropometry in CFS variables
painches under Medical History in CFS variables
presches under Medical History in CFS variables
chestdur under Sleep Monitoring/Polysomnography/Signal Quality in CFS variables
Number of hours of usable signal from thoracic effort belt as assessed by scorer.
quchest under Sleep Monitoring/Polysomnography/Signal Quality in CFS variables
Overall quality of signal from thoracic effort belt during sleep as assessed by scorer.