Table 2.

Differences in sleep architecture in participants with and without IBD

	IBD	Healthy	Significance (t-test)
Sleep onset latency	18.97 min (SD=26.51)	20.93 min (SD=19.43)	p=0.86
Wake after sleep onset	50.77 min (SD=24.91 min)	40.86 min (SD=20.24)	p=0.37
Total sleep time	6.73 hours (SD=1.47)	6.09 hours (SD=0.66)	p=0.29
Sleep efficiency	81.76% (SD=13.86%)	85.78% (SD=7.49%)	p=0.48
REM latency	81.47 min (SD=31.86)	84.14 min (SD=50.84)	p=0.88
REM sleep, %	20.85% (SD=6.92%)	22.28% (SD=6.40%)	p=0.65
Stage 1 sleep (N1), %	5.11% (SD=2.76%)	5.66% (SD=4.07%)	p=0.71
Stage 2 sleep (N2), %	40.43% (SD=14.61%)	42.87% (SD=16.19%)	p=0.73
Stage 3 sleep (N3), %	30.28% (SD=13.02%)	29.19% (SD=17.64%)	p=0.87
Microarousals/hour	13.87 (SD=9.83)	4.86 (SD=3.31)	p=0.03
Awakenings	33.83 (SD=16.16)	28.50 (SD=13.28)	p=0.46

Bolded value is significant at p<0.05.

IBD, inflammatory bowel disease; REM, rapid eye movement.