Table 2.

Sleep architecture in CFS and non-fatigued controls – Night 2 adjusted for medication use

	CFS n = 35	NF n = 40	p-value**
	Adjusted Mean*	Adjusted Mean*
Total sleep time (min)	400.3	407.9	0.52
Sleep period time (min)	453.8	457.8	0.79
Latency to sleep onset (min)	21.3	17.1	0.47
REM latency (min)	98.4	106.8	0.40
Sleep efficiency (%)	88.3	90.2	0.32
Wake after onset (min)	53.8	44.0	0.69
Wake % Sleep Period	11.7	9.8	0.72
# Arousals	105.7	110.2	0.81
Arousal index	15.9	16.3	0.82
Stage 1 (% TST)	9.6	9.5	0.79
Stage 2 (% TST)	48.2	50.8	0.28
Stage 3/4 (% TST)	19.9	17.4	0.20
REM (% TST)	22.3	23.3	0.98
Alpha intrusion	0.29	0.49	0.11

*Mean values adjusted for medication use (yes/no).

** p-values generated using 2-factor analysis of variance