Canadian Respiratory Journal

Research Article

Obstructive Sleep Apnea and Hypertension in Adolescents: Effect on Neurobehavioral and Cognitive Functioning

Table 2

Comparison of sleep scoring parameters found in the 2 groups of study subjects.


	Hypertension with OSA	Hypertension without OSA

TST, min	471.3 ± 50.9	468.1 ± 38.8	NS
SOL, min	7.8 ± 2.8	27.2 ± 9.3	<0.05
WASO, min	12.7 ± 4.2	19.1 ± 2.1	<0.05
SE, %	72.1 ± 3.2	89.7 ± 2.5	<0.05
S1, %	2.5 ± 1.5	2.3 ± 1.7	NS
S2, %	71.2 ± 9.1	49.2 ± 6.7	<0.05
SWS, %	12.4 ± 2.1	16.9 ± 1.5	<0.05
REM, %	13.4 ± 3.1	30.7 ± 3.5	<0.05
AHI, /h TST	13.7 ± 1.5	1.1 ± 0.5	<0.05
Arousal index, /h TST	28.6 ± 0.4	18.2 ± 0.3	<0.05
SpO₂ nadir, %	90.8 ± 1.1	97.1 ± 0.5	<0.05

Data shown as (%) or mean ± standard error. Significant differences are indicated by bold print.
TST: total sleep time; SOL: sleep onset latency; WASO: wakefulness after sleep onset; SE: sleep efficiency; S1, S2: sleep stages 1 and 2; SWS: slow wave sleep; REM: rapid eye movement sleep; AHI: apnea hypopnea index; SpO₂ nadir: nadir oxyhemoglobin saturation by pulse oximetry.