Table 3.

The effects of CPAP, the oral appliance and physical exercise on sleep parameters.

	CPAP Group		OA Group		Exercise Group Baseline Post-treatment		p value
	Baseline	Post-treatment	Baseline	Post-treatment
Sleep Efficiency (%)	78.5±16.5	89.5±5.8	78.5±8.5	84.2±8.8	79.9±9.0	83.7±11.0	NS
Sleep Latency (min)	18.7±27.8	8.7±7.9	21.7±20.5	14.6±20.6	12.7±10.5	11.4±17.5	NS
REM Sleep Latency (min)	111.9±67.2	112.1±78.7	139.1±75.3	127.9±90.8	116.8±93.2	110.5±57.1	NS
Awake (min)	63.8±61.6	37.1±24.4	82.1±37.2	55.0±22.2	68.7±22.6	55.1±46.0	NS
Sleep Stage N1 (%)	5.4±5.0	5.1±2.0	4.4±1.8	8.2±3.4	7.3±2.5	9.1±4.9	NS
Sleep Stage N2 (%)	54.3±11.6	50.0±6.6	66.6±13.6	56.7±8.7	52.3±8.3	56.9±7.3	NS
Sleep Stage N3 (%)	22.7±9.4	25.8±2.9	15.9±9.2	19.8±7.3	16.9±12.4	13.8±12.8	NS
Sleep Stage NREM (%)	17.3±6.9	17.9±4.3	13.2±6.2	15.3±5.4	17.7±5.4	16.0±3.9	NS
Apnea-Hypopnea Index(AHI)	25.1±10.5	1.9±1.2*	30.8±19.0	9.6±10.3*	22.8±12.8	18.7±10.5	<0.01
Arousal Index	26.1±12.6	12.1±3.3	32.5±12.7	14.4±5.8	24.4±11.3	20.4±9.7	NS

Values are expressed as means±SD. *Significant difference from respective baseline records (p<0.001, ANOVA, Tukey's test).