Selected preoperative findings Finding Range (median) Body mass index 20.1 to 44 (27.1) Respiratory disturbance index
5 to 99 (40) Apnea/hypopnea index 5 to 99 (39.5) Minimum [O.sub.2] saturation 60 to 96% (88%) Sleep efficiency value 26.4 to 96.0% (82%)
Results include the apneahypopnea index or the respiratory disturbance index
(number of apneic or hypopneic episodes per hour).
OSA is defined according to the apnea / hypoapnea index (AHI) or respiratory disturbance index
Respiratory disturbance index
was a marginally significant predictor.
The relative risk of death as a function of each transition index was calculated using proportional hazards models, adjusting for age, gender, body mass index, race, hypertension, cardiovascular disease, smoking status, respiratory disturbance index
and arousal index.
(%) cases than or equal to] 50% of concordance * (n = 21) (n = 19) Subjective rating Snoring loudness (VAS) 10 (48) N/A Objective SNAP measurements Snoring loudness (dB) 5 (24) 11 (58) Snoring index ([double 5 (24) 12 (63) dagger]) Apnea index ([section]) 10 (48) 8 (42) RDI ([section]) 8 (38) 10 (53) Key: SD = standard deviation; CI = confidence interval; VAS = visual analog scale score; RDI = respiratory disturbance index
. * No.
Each of those children was identified using parameters of Respiratory Disturbance Index
(RDI) in Rapid Eye Movement (REM) sleep more than 40, or more than 20 plus an oxygen saturation nadir of less than 70%.