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Table 1 Baseline characteristics of the study subjects in relation to the development of hypertension

From: Brachial-ankle pulse wave velocity is an independent predictor of incident hypertension in Japanese normotensive male subjects

Baseline characteristics

Total (n = 2,278)

Incident hypertension

P value

No (n = 2,127)

Yes (n = 151)

Age, years (n)

46 ± 6

46 ± 6

48 ± 5

<0.01

Body mass index (kg/m2)

23.7 ± 2.8

23.1 ± 2.9

25.4 ± 3.3

<0.001

Smoking (n, %)

1,164 (51.1%)

1,097 (51.6%)

67 (44.4%)

0.09

Alcohol (n, %)

1,640 (72.0%)

1,519 (71.4%)

121 (80.1%)

<0.05

Exercise (≥1/week) (n, %)

1,035 (45.4%)

949 (44.6%)

86 (57.0%)

<0.01

Diabetes mellitus (n, %)

40 (1.8%)

31 (1.5%)

9 (6.0%)

<0.001

Hyperlipidemia (n, %)

88 (3.9%)

69 (3.2%)

19 (12.6%)

<0.001

Family history of hypertension (n, %)

317 (13.9%)

291 (13.7%)

26 (17.2%)

0.23

Heart rate (beats/min)

61 ± 10

61 ± 10

62 ± 10

0.06

Systolic blood pressure (mmHg)

117 ± 9

116 ± 9

127 ± 7

<0.001

Diastolic blood pressure (mmHg)

74 ± 7

73 ± 7

82 ± 5

<0.001

baPWV (cm/s)

1,301 ± 142

1,293 ± 137

1,412 ± 168

<0.001

LDL-cholesterol (mg/dL)

127 ± 31

127 ± 31

126 ± 32

0.68

HDL-cholesterol (mg/dL)

56 ± 14

56 ± 14

54 ± 15

0.09

Triglyceridea (mg/dL)

104 (73–150)

103 (73–149)

115 (86–169)

<0.01

Glucose (mg/dL)

93 ± 17

93 ± 16

100 ± 23

<0.001

  1. baPWV Brachial-ankle pulse wave velocity, LDL low-density lipoprotein, HDL high-density lipoprotein
  2. Unless indicated otherwise, data are expressed as the mean ± standard deviation (SD)
  3. aTriglyceride is expressed as a median and interquartile range (IQR) due to its skewed distribution