. Author manuscript; available in PMC: 2010 Dec 1.

Published in final edited form as: Sleep Med. 2009 Aug 20;10(10):1101–1106. doi: 10.1016/j.sleep.2008.12.016

Table 3.

Improvements in Sleep after 3 weeks of therapeutic CPAP (paired analysis)

PSG Variable (mean ± SD)	Screening Night (n=39)	3-Weeks of Therapeutic CPAP (n=39)	p value^*
% Stage 1 Sleep	23.5 ± 14.5	16.3 ± 10.1	0.001
% Stage 2 Sleep	59.6 ± 13.8	64.2 ± 11.5	0.06
% Stage 3 Sleep	1.9 ± 3.1	4.0 ± 6.2	0.006
% Stage 4 Sleep	0.1 ± 0.2	0.2 ± 0.7	0.26
% REM Sleep	15.0 ± 8.7	15.3 ± 6.6	0.95
TST (min)	372.0 ± 87.1	343.6 ± 72.5	0.05
WASO (min)	126.0 ± 79.5	92.3 ± 44.6	0.005
TIB (min)	507.2 ± 77.0	458.0 ± 68.6	0.002
SP (min)	498.0 ± 78.0	435.9 ± 77.2	<0.001
SO (min)	9.2 ± 17.2	19.9 ± 32.2	0.06
SE (%)	75.1 ± 14.5	78.8 ± 10.0	0.11
ArI	8.4 ± 5.1	4.7 ± 2.7	0.005

p-value from paired analysis is shown.