Table 2 Differences in clinical parameters by nocturnal BP dipping pattern

From: Seasonal variation in nocturnal home blood pressure fall: the Nagahama study

  

Extreme-dipper (307)

Dipper (1660)

Non-dipper (2162)

Riser (651)

p

Age (years)

62.1 ± 11.6

59.1 ± 12.0

58.1 ± 12.4

60.0 ± 12.6

<0.001

Sex (men, %)

31.3

28.9

32.5

35.0

0.018

BMI (kg/m2)

22.6 ± 3.2

22.6 ± 3.3

22.1 ± 3.3

21.6 ± 3.1

<0.001

Alcohol consumption (Go/week)

4.6 ± 9.0

3.6 ± 7.7

3.4 ± 6.9

3.4 ± 6.8

0.067

Antihypertensive medication (%)

29.3

25.3

23.7

23.2

0.122

SBP

     

 Awake (mmHg)

136 ± 17

128 ± 16

122 ± 16

118 ± 16

<0.001

 Sleeping (mmHg)

104 ± 12

110 ± 13

115 ± 15

123 ± 17

<0.001

 Nocturnal dipping (%)

−23 ± 3

−14 ± 3

−6 ± 3

5 ± 5

<0.001

DBP

     

 Awake (mmHg)

79 ± 10

76 ± 10

73 ± 10

70 ± 10

<0.001

 Sleeping (mmHg)

60 ± 8

64 ± 8

67 ± 9

71 ± 10

<0.001

 Nocturnal dipping (%)

−24 ± 6

−15 ± 6

−7 ± 6

2 ± 8

<0.001

BNP (pg/ml)

 

20.2 ± 16.1

20.0 ± 18.7

21.7 ± 20.8

24.7 ± 23.6

<0.001

eGFR (ml/min/1.73 m2)

 

77.3 ± 14.8

77.2 ± 13.5

77.3 ± 14.2

76.0 ± 14.1

0.197

  1. Values are mean ± standard deviation or frequency. Statistical significance was assessed by analysis of variance or chi-squared test
  2. Percentage decline in sleep SBP was calculated using the following equation: [(sleep SBP−awake SBP)/awake SBP] × 100. Extreme-dipper, nocturnal SBP change ≤−20%; dipper, >−20% to ≤−10%; non-dipper, >−10%; and riser, increase in sleep SBP compared with awake SBP
Back to article page