Published in:
01-01-2023 | Polysomnography | Correction
Correction to: Comparison of the usability of an automatic sleep staging program via portable 1-channel electroencephalograph and manual sleep staging with traditional polysomnography
Published in: Sleep and Biological Rhythms | Issue 1/2023
Login to get accessExcerpt
In the original publication of this article, in Table 2, the lengths of each sleep stage (N1, N2, N3, REM) were incorrectly listed as the same for all participants, the patient group, and the healthy group. The correct data (Table 2) is given in this correction. This error does not impact the conclusions of the article.
Table 2
Sleep outcome measures for the patient and healthy groups based on the Sleep Scope system and polysomnography findings
|
Outcome measure
|
Sleep Scope
|
Polysomnography (expert)
|
||
|---|---|---|---|---|
|
1
|
2
|
3
|
||
|
All participants (N = 40)
|
||||
|
Total sleep time (min)
|
408 (69)
|
425 (69)
|
414 (72)
|
400 (74)
|
|
Sleep onset latency (min)
|
24 (18)
|
21 (16)
|
21 (17)
|
21 (16)
|
|
WASO (min)
|
70 (58)
|
55 (58)
|
67 (61)
|
81 (63)
|
|
SE (%)
|
81 (12)
|
85 (12)
|
82 (13)
|
80 (13)
|
|
Number of awakenings, ≤ 2 min
|
131 (115)
|
188 (69)
|
119 (77)
|
111 (57)
|
|
Sleep stage
|
||||
|
N1 (min)
|
56 (50)
|
83 (49)
|
85 (60)
|
80 (54)
|
|
N2 (min)
|
222 (64)
|
205 (57)
|
193 (72)
|
223 (86)
|
|
N3 (min)
|
36 (34)
|
62 (40)
|
47 (33)
|
24 (23)
|
|
REM (min)
|
93 (38)
|
74 (27)
|
88 (31)
|
73 (29)
|
|
Undeterminable (% of total epochs of all participants)
|
0.214
|
1.11
|
0.546
|
0.0224
|
|
Patient group (N = 26)
|
||||
|
Total sleep time (min)
|
385 (71)
|
403 (72)
|
391 (76)
|
374 (75)
|
|
Sleep onset latency (min)
|
21 (12)
|
18 (11)
|
18 (11)
|
19 (11)
|
|
WASO (min)
|
88 (63)
|
72 (65)
|
86 (68)
|
101 (69)
|
|
SE (%)
|
78 (14)
|
82 (14)
|
79 (15)
|
76 (15)
|
|
Number of awakenings, ≤ 2 min
|
165 (126)
|
197 (58)
|
135 (83)
|
123 (61)
|
|
Sleep stage
|
||||
|
N1 (min)
|
67 (58)
|
95 (55)
|
100 (67)
|
94 (60)
|
|
N2 (min)
|
205 (69)
|
187 (60)
|
170 (76)
|
194 (90)
|
|
N3 (min)
|
29 (36)
|
53 (41)
|
39 (36)
|
18 (21)
|
|
REM (min)
|
84 (37)
|
69 (29)
|
82 (35)
|
67 (31)
|
|
Undeterminable (% of total epochs of all participants)
|
0.327
|
1.19
|
0.642
|
0.00389
|
|
Healthy group (N = 14)
|
||||
|
Total sleep time (min)
|
450 (41)
|
466 (38)
|
456 (35)
|
448 (40)
|
|
Sleep onset latency (min)
|
30 (24)
|
26 (22)
|
27 (22)
|
26 (22)
|
|
WASO (min)
|
36 (19)
|
24 (17)
|
33 (18)
|
43 (20)
|
|
SE (%)
|
87 (5)
|
90 (5)
|
88 (5)
|
87 (5)
|
|
Number of awakenings, ≤ 2 min
|
69 (39)
|
169 (81)
|
89 (48)
|
90 (38)
|
|
Sleep stage
|
||||
|
N1 (min)
|
37 (11)
|
62 (21)
|
59 (25)
|
53 (19)
|
|
N2 (min)
|
254 (30)
|
238 (26)
|
237 (29)
|
276 (34)
|
|
N3 (min)
|
49 (22)
|
80 (29)
|
62 (17)
|
35 (20)
|
|
REM (min)
|
110 (33)
|
85 (17)
|
98 (18)
|
84 (19)
|
|
Undeterminable (% of total epochs of all participants)
|
0.0138
|
0.976
|
0.374
|
0.0554
|