Table 2.

Results of study expressed as mean ± SEM

	Variable Treatment (Mean ± SEM)	Fixed Treatment (Mean ± SEM)	P value
CPAP use (h/night)	4.2 ± 0.2	4.0 ± 0.2	0.047
Epworth Sleepiness Scale	9.5 ± 0.4	10.0 ± 0.3	0.031
Mean CPAP pressure	10.7 ± 0.16	10.6 ± 0.13	> 0.5
Residual A+H/h on CPAP	6.7 ± 0.4	6.3 ± 0.4	0.17
OSLER (min)
Test 1	36.9 ± 0.6	36.6 ± 0.6	> 0.5
Test 2	34.6 ± 0.7	34 ± 0.8	> 0.3
Mean	35.7 ± 0.6	35.3 ± 0.6	> 0.4
PVT (msec)
Mean response time	292 ± 13	302.8 ± 19	0.14
Median response time	263.4 ± 5	273.7 ± 11	0.2
Lapses	2.9 ± 0.5	3.8 ± 0.8	0.14
SF-36
Health transition	3.0 ± 0.1	2.9 ± 0.1	> 0.3
Physical Health	42.5 ± 0.9	42.1 ± 1.0	> 0.9
Mental Health	48.7 ± 0.8	48.8 ± 0.8	> 0.7
Quality of Life	57.7 ± 0.1	57.7 ± 0.1	> 0.9