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Table 1 Comparison of sleep duration and time interval between going to bed and sleeping in hypertensive patients and non-hypertensive controls based on sex, age group, BMI, place of residence, and total population

From: Association between blood pressure and parameters related to sleep disorders in Tabari cohort population

Variable

HTN

Sleep duration (hours)

Throw sleep (hours)

 < 6

(n = 1,168)

6–10

(n = 8,459)

 > 10

(n = 624)

P-value

Mean ± SD

P-value

 ≤ 15

(n = 5,758)

16–30

(n = 2,277)

31–60

(n = 1,456)

 > 60

(n = 760)

P-value

Sex

 M

No

84.1

81.9

75.0

0.021

7.57 ± 1.50

0.018

81.8

82.5

79.4

82.1

0.623

Yes

15.9

18.1

25.0

7.71 ± 1.56

18.2

17.5

20.6

17.9

 F

No

70.2

75.9

74.8

0.003

7.64 ± 1.70

 < 0.001

77.1

77.8

71.1

66.1

 < 0.001

Yes

29.8

24.1

25.2

7.43 ± 1.81

22.9

22.2

28.9

33.9

Age (years)

 35–44

No

91.4

92.2

92.8

0.848

7.76 ± 1.53

0.308

92.6

91.9

90.2

92.1

0.419

Yes

8.6

7.8

7.2

7.66 ± 1.62

7.4

8.1

9.8

7.9

 45–54

No

78.7

80.3

77.5

0.503

7.57 ± 1.58

0.848

81.8

82.0

74.6

71.1

 < 0.001

Yes

21.3

19.7

22.5

7.56 ± 1.67

18.2

18.0

25.4

28.6

 55–70

No

63.0

62.5

55.8

0.129

7.45 ± 1.77

0.585

63.3

62.7

60.6

57

0.128

Yes

37.0

37.5

44.2

7.48 ± 1.79

36.7)

37.3

34.9

43.0

BMI (kg/m2)

  < 25

No

82.6

87.8

84.5

0.033

7.57 ± 1.63

0.070

87.7

88.4

84.0

81.6

0.044

Yes

17.4

12.2

15.5

7.39 ± 1.71

12.3

11.6

16.0

18.4

 25–29.9

No

75.5

78.9

76.0

0.161

7.63 ± 1.58

0.320

79.3

80.0

75.2

70.3

 < 0.001

Yes

24.5

21.1

24.0

7.57 ± 1.69

20.7

20.0

24.8

29.7

  ≥ 30

No

68.5

70.8

68.1

0.463

7.62 ± 1.66

0.154

72.6

73.0

65.0

60.9

 < 0.001

Yes

31.5

29.2

31.9

7.53 ± 1.79

27.4

27.0

35.0

39.1

WC (cm)

 M < 102

No

83

85.1

81.3

0.120

7.61 ± 1.57

0.486

85.1

85.1

83

81.5

0.277

 F, < 88

Yes

17

14.9

18.7

7.57 ± 1.64

14.9

14.9

17

18.5

 M ≥ 102

No

67.5

71.1

69.4

0.166

7.62 ± 1.69

0.036

72.1

74

66.4

62.3

 < 0.001

 F ≥ 88

Yes

32.5

28.9

30.6

7.51 ± 1.79

27.9

26

33.6

37.7

Place of residence

 Urban

No

77.8

79.1

75.2

0.106

7.75 ± 1.57

0.748

79.09

80.7

74.4

69.8

 < 0.001

Yes

22.2

20.9

24.8

7.77 ± 1.68

20.1

19.3

25.6

30.2

 Mountainous

No

71.2

76.7

73.0

0.021

7.29 ± 1.69

0.002

78.3

76.3

71.1

67.1

 < 0.001

Yes

28.8

23.3

27.0

7.07 ± 1.75

21.7

23.7

28.9

32.9

TG (mg/dL)

  < 150

No

77.1

80.7

78.3

0.060

7.56 ± 1.62

0.065

81.4

81.4

76.2

72.7

 < 0.001

Yes

22.9

19.3

21.7

7.47 ± 1.73

18.6

18.6

23.8

27.3

  ≥ 150

No

71.3

75.2

70.9

0.071

7.69 ± 1.62

0.124

76.4

77

69.2

63.7

 < 0.001

Yes

28.7

24.8

29.1

7.60 ± 1.75

23.6

23

30.8

36.3

HDL-C (mg/dL)

 M > 40

No

77.2

79.1

75.7

0.143

7.56 ± 1.62

0.162

80.4

80.8

72.5

71.1

 < 0.001

 F > 50

Yes

22.8

20.9

24.3

7.49 ± 1.69

19.6

19.2

27.5

28.9

 M ≤ 40

No

69.9

76.8

73.6

0.009

7.72 ± 1.63

0.054

77.2

77.4

74.5

64.5

 < 0.001

 F ≤ 50

Yes

30.1

23.2

26.4

7.59 ± 1.82

22.8

22.6

25.5

35.5

TC (mg/dL)

  < 200

No

76.2

78.2

73.8

0.078

7.61 ± 1.61

0.540

79

79.2

73.6

69.7

 < 0.001

Yes

23.8

21.8

26.2

7.58 ± 1.70

21

20.8

26.4

30.3

  ≥ 200

No

72.8

78.7

76.7

0.015

7.62 ± 1.65

0.007

80

80.3

72.7

67.2

 < 0.001

Yes

27.2

21.3

23.3

7.43 ± 1.81

20

19.7

27.3

32.8

Total population

No

74.8

25.2

74.8

0.005

7.61 ± 1.62

0.032

79.4

79.6

73.2

68.7

 < 0.001

Yes

25.2

21.6

25.2

7.53 ± 1.74

20.6

20.4

26.8

31.3

  1. BMI body mass index, HTN hypertension, SD standard deviation, M male, F female, WC waist circumference, TG triglyceride, HDL-C high-density lipoprotein cholesterol, TC total cholesterol