is a partial blockage of the airway that results in an airflow reduction of greater than 50% for 10 seconds or more.
Sleep efficiency, sleep latency, distribution of sleep stages, Apnoea Hypopnoea
Index (AHI), AHI during the rapid eye movement (REM) stage, AHI during the non-REM stage, minimal oxygen saturation, duration of the oxygen saturation lower than 90%, number and index of the leg movement, number and index of the periodical leg movement and, number and index of the leg movement which led to arousal were recorded.
The apnoea/ hypopnoea
index (AHI) acquired by manual SC analysis correlated closely with that obtained by PSG (r = 0.
1 Schlosshan D, Elliott MW, Clinical presentation and diagnosis of the obstructive sleep apnoea hypopnoea
syndrome, Thorax 2004; 59: 347-52.
Gender difference in relationship of apnoea/ hypopnoea
index with body mass index and age in the omani population.
Adaptive neuro-fuzzy inference system employing wavelet coefficients for detection of alterations in sleep EEG activity during hypopnoea
Combined index of heart rate variability and oximetry in screening for the sleep apnoea/ hypopnoea
It has been acknowledged that even amongst sleep physicians the distinction between severe obstructive sleep apnoea, hypopnoea
and obesity hypoventilation syndromes is confused (27).
Apnoea and hypopnoea
were scored as recommended by the American Academy of Sleep Medicine (13).
At the beginning of the study, both groups had a mean apnoea hypopnoea
index (AHI) of 37 apnoeas per hour.
The frequency of apnoea or hypopnoea
is used to assess the severity of this condition.
Sleep - 4: Sleepiness, cognitive function, and quality of life in obstructive sleep apnoea/ hypopnoea