Related Variables
visit |
Visit number
The Study of Osteoporotic Fractures (SOF) Visit where the data were collected/derived. |
Administrative | |
ahi_a0h4a |
Apnea-Hypopnea Index: (Apneas with no oxygen desaturation threshold used and with or without arousal+ hypopneas with > 30% flow reduction and >= 4% oxygen desaturation or with arousal) / hour of sleep from type II polysomnography
Calculated - Summary metric of sleep disordered breathing events |
Sleep Monitoring/Polysomnography/Apnea-Hypopnea Indices |