Table 1 Comparisons of study parameters in different study groups

Sex

 Male

98

64.1%

66

66%

0.8

 Female

55

35.9%

34

34%

PLM groups

 PLM < 15

98

64.1%

86

86%

 < 0.001*

 PLM ≥ 15

55

35.9%

14

14%

AHI severity level

 Mild

57

37.2%

100

100%

 < 0.001*

 Moderate

35

22.9%

0

0%

 Severe

61

39.9%

0

0%

Age (years)

49.6

13.1

38.7

10.2

 < 0.001*

BMI (kg/m²)

30.05

8.9

36.3

8.7

0.12

STOP-Bang score

5.2

1.1

4.7

1

 < 0.001*

Epworth score

17.4

1.4

16.7

1.1

 < 0.001*

Total time in bed

7.6

1.4

7.9

1.2

0.09

Total sleep time

6.4

1.4

6.8

1.3

0.03*

Sleep efficiency

83.7

10.3

86.3

7.8

0.03*

RDI

34.7

22.6

9.4

12.4

 < 0.001*

Apnea index

6.8

12.9

0.62

0.88

 < 0.001*

Hypopnea index

21.8

19.2

2.2

1.3

 < 0.001*

Baseline O₂ saturation

93.9

3.1

94.6

2.5

0.09

Minimal SpO₂

78.7

10.5

84.7

9.7

 < 0.001*

Average SpO₂

92.9

3.9

94.2

3.6

0.01*

Desaturation index

30.8

26.8

8.8

15.2

 < 0.001*

Arrhythmia index

37.1

72.6

28.8

89.7

 < 0.001*

PLMs index

14.7

19.9

5.6

8.8

 < 0.001*

PLMs with arousal index

1.8

3.3

1.2

2.1

0.11

Wake index

6.1

7.3

4.3

4.5

0.03*

AHI

28.7

22.9

2.8

1.3

 < 0.001*