Periodic Limb Movements during Sleep in Children, Adolescents, and Adults with Narcolepsy: A Cross-Sectional Study in China

Table 2

Sleep parameters of narcolepsy with and without PLMS in child/adolescent and adult groups.

	Children/adolescents			Adults
	N+PLMS ()	N-PLMS ()		N+PLMS ()	N-PLMS ()
Nocturnal sleep
TST, min			0.703			0.011
Sleep efficiency, %			0.655			0.030
Sleep latency, min			0.895			0.514
REM latency, min			0.060			0.708
WASO, min			0.337			0.021
Arousal index, /h			0.358			0.101
Stage N1, %			0.446			0.418
Stage N2, %			0.563			0.353
Stage N3, %			0.217			0.244
Stage REM, %			0.331			0.859
AHI, /h			0.361			0.968
PLMI, /h			<0.001			<0.001
MSLT
Mean sleep latency, min			0.813			0.363
SOREMPs,			0.117			0.416

AHI: apnea-hypopnea index; MSLT: multiple sleep latency test; N+PLMS: narcolepsy with PLMS; N-PLMS: narcolepsy without PLMS; N1: stage 1 of nonrapid eye movement sleep; N2: stage 2 of nonrapid eye movement sleep; N3: stage 3 of nonrapid eye movement sleep; PLMI: periodic limb movement index; REM: rapid eye movement; SOREMPs: sleep onset rapid eye movement periods; TST: total sleep time; WASO: wake after sleep onset.