TABLE 4 ] .

Polysomnographic Variables at Baseline as Predictors of Spontaneous OSA Resolution, as Assessed by PSG or Symptoms at 7-Month Follow-up^a

	Polysomnographic Evidence for OSA			Symptoms Suggestive of OSA
Baseline Variable	Not Resolved (n = 112)	Resolved (n = 82)	P Value	Not Resolved (n = 142)	Resolved (n = 25)	P Value
Apnea/hypopnea index	8.40 ± 6.19	4.41 ± 3.72	< .0001	7.08 ± 5.90	7.27 ± 6.02	.88
Obstructive apnea index	2.50 ± 3.20	1.48 ± 1.69	.01	2.30 ± 3.09	1.88 ± 2.18	.52
% of sleep time with oxygen saturation < 92%	1.12 ± 4.67	0.31 ± 0.76	.07	0.92 ± 4.20	0.72 ± 1.23	.82
Minimum oxygen saturation, %	87.88 ± 5.16	90.02 ± 4.87	.01	88.95 ± 4.65	87.96 ± 6.82	.37
% of sleep time with CO2 > 50 mm Hg	10.52 ± 19.54	5.31 ± 13.96	.08	9.46 ± 19.04	8.71 ± 18.07	.87

Data given as mean ± SD unless otherwise indicated. See Table 1 legend for expansion of abbreviation.

^aTests were conducted excluding subjects with missing values.