Related Variables
| nsrr_ttleffsp_f1 |
Sleep Efficiency: the ratio of total sleep duration (i.e., total sleep time) to in-bed period (i.e., time in bed) from polysomnography
Harmonized by the NSRR team. Source: :slpeffp: |
Harmonized/Polysomnography/Sleep Architecture | |
| period |
Polysomnography (PSG) Quality Assessment (Sleep Heart Health Study Visit Two (SHHS2)): Periodic breathing (5 min)
Scorer observed periodic breathing for a period of at least 5 minutes during study. |
Sleep Monitoring/Polysomnography/Signal Quality/SHHS2 |