Screening Sleep Disordered Breathing in Stroke Unit

Table 1

Sleep stage parameters of the PSG group with the two different scoring systems.

	Standard scoring	EOG scoring	𝑃 value
	Median (min–max)	Median (min–max)
TST (min)	321 (48.5–506.5)	353.5 (49.5–498.5)	0.051
SEI (%)	72.2 (42–90.9)	69.1 (42.9–89.4)	0.48
% N1	12.8 (6.5–41.2)	15.4 (6.8–48.5)	0.068
% N2	69.5 (36.1–83.2)	66.2 (37.4–82.4)	0.33
% N3	7.0 (0–23.6)	5.9 (0–17.7)	0.17
% REM	11.2 (0–22.3)	12.9 (0–25.4)	0.61

Standard scoring: sleep stage scoring according to the standard rules; EOG scoring: sleep stage scoring based on the two EOG (electrooculography) channels only; TST: total sleep time; SEI: sleep efficiency index referred to analysis time; % N1–N3: percentage of N1–N3 sleep referred to TST; % REM: percentage of REM sleep referred to TST. Statistical comparisons with the Wilcoxon test.