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Table 2 Individual sleep data obtained during the single night polysomnogram

From: Overnight variation in tidal expiratory flow limitation in COPD patients and its correction: an observational study

Participant ID

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

AHI (avg/h)

26

26

67.5

NA

40.6

5.9

9

3.8

1

5

0

12

0

2

19

Time in wake stage (min)

93

38

394

NA

91

263

210

60

294

325

158

219

228

135

208

Time in N1 stage (min)

22

19

6

NA

30

61

43

43

26

52

14

50

15

7

23

Time in N2 stage (min)

123

232

2

NA

188

124

145

145

62

54

193

172

94

130

113

Time in N3 stage (min)

0

0

0

NA

0

6

32

83

35

0

38

0

42

108

0

Time in REM stage (min)

47

126

0

NA

35

3

37

90

78

47

20

48

36

9

14

Total recording time (min)

285

416

402

NA

345

458

467

421

496

479

423

490

415

391

358

Total sleep time (min)

192

377

8

NA

254

195

258

361

202

154

265

270

187

256

150

Sleep efficiency (%)

67%

91%

2%

NA

74%

42%

55%

86%

41%

32%

63%

55%

45%

65%

42%

  1. Study number represents the same individuals in Table 1. NA not available