Table 6.

Comparing Rates of Sleep Problems in the Functionally Impaired vs. Good Recovery

	Rates of sleep problems (impaired vs. unimpaired)
	1 month	3 months	6 months
Sleep onset insomnia	68.6% vs. 22.5%*	55.2% vs. 27.6%*	51.2% vs. 26.1%*
Short sleep	60.0% vs. 36.7%*	68.4% vs. 41.0%*	48.8% vs. 30.8%*

Impaired subjects were identified by scoring 6 or below on the GOSE. Sleep duration was measured by PSQI item #4a. Sleep onset insomnia = rating inability to fall asleep within 30 minutes on three or more nights per week, PSQI item #5a.

*Statistically significant z-test comparing sleep problem proportions.