Manual Characterization of Sleep Spindle Index in Patients with Narcolepsy and Idiopathic Hypersomnia

Table 3

(a) Number of continuous periods of N2 sleep evaluated in idiopathic hypersomnia and narcolepsy. (b) Intragroup and intergroup comparisons of the number of continuous periods of N2 sleep evaluated.

(a)

	Mean ± SD	Range
Idiopathic hypersomnia
1st 50 epochs	3.37±1.06	2–5
Last 50 epochs	1.37±0.51	1-2
Narcolepsy
1st 50 epochs	2.87±0.99	1–4
Last 50 epochs	2.0±1.30	1–4

(b)

Comparison	Mann-Whitney 𝑃 values
IH: 1st 50 epochs; IH: last 50 epochs	0.002
N: 1st 50 epochs; N: last 50 epochs	0.207
IH: all epochs; N: all epochs	0.850
IH: 1st 50 epochs; N: 1st 50 epochs	0.400
IH: last 50 epochs; N: last 50 epochs	0.462

IH: idiopathic hypersomnia; N: narcolepsy.