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Table 1 Basic characteristics of the hypotensive group compared with the normotensive group (2010–2013)

From: Association of low blood pressure with suicidal ideation: a cross-sectional study of 10,708 adults with normal or low blood pressure in Korea

Characteristic

Reference group a

Low blood pressure b

n = 8139 (76.0%)

n = 2569 (24.0%)

Sex

 Men

3143 (86.0%)

511 (14.0%)

 Women

4996 (70.8%)

2058 (29.2%)

Age (mean), years

43.5 ± 15.0

38.7 ± 12.9

Age group

 19~ 29

1531 (70.0%)

655 (30.0%)

 30~ 39

2165 (71.3%)

870 (28.7%)

 40~ 49

1754 (75.8%)

560 (24.2%)

 50~ 59

1375 (82.7%)

287 (17.3%)

 60~ 69

762 (85.9%)

125 (14.4%)

 ≥ 70

552 (88.5%)

72 (11.5%)

SBP, mmHg

108.8 ± 5.4

94.6 ± 4.0

DBP, mmHg

70.6 ± 5.6

63.2 ± 5.9

Mean Body Mass Index

22.9 ± 3.2

21.7 ± 2.8

Body Mass Index (kg/m2)

 < 18.5

508 (65.0%)

274 (35.0%)

 ≥ 18.5, < 25

5718 (74.3%)

1978 (25.7%)

 ≥ 25

1899 (86.0%)

310 (14.0%)

Hemoglobin, g/dl

13.8 ± 1.6

13.2 ± 1.4

Total cholesterol level, mg/ml

186.3 ± 34.9

177.8 ± 32.6

Household income

 Low

1958 (77.6%)

566 (22.4%)

 Low to intermediate

2005 (77.0%)

599 (23.0%)

 Intermediate to high

2020 (75.7%)

650 (24.3%)

 High

2075 (73.8%)

738 (26.2%)

Educational level

 Elementary school

1133 (86.4%)

178 (13.6%)

 Middle school

695 (83.7%)

135 (16.3%)

 High school

3215 (76.1%)

1010 (23.9%)

 College/University

3094 (71.3%)

1246 (28.7%)

Marital status

 Single

1892 (77.3%)

556 (22.7%)

 Married

5771 (76.2%)

1803 (23.8%)

 Rejection response

469 (69.5%)

206 (30.5%)

Current smoking status

 Yes

1743 (82.7%)

364 (17.3%)

 No

6395 (74.4%)

2204 (25.6%)

Alcohol intake

 1 drink</month

2812 (72.4%)

1072 (27.6%)

 1~ 4 drink /month

3026 (76.0%)

957 (24.0%)

 ≥ 2~ 3 drink /week

1473 (82.8%)

307 (17.2%)

Diabetes mellitus

 Yes

273 (84.5%)

50 (15.5%)

 No

7866 (75.7%)

2519 (24.3%)

Stroke

 Yes

7 (43.8%)

9 (56.3%)

 No

8102 (76.0%)

2560 (24.0%)

MI/Angina pectoris

 Yes

95 (84.1%)

18 (15.9%)

 No

8044 (75.9%)

2551 (24.1%)

Depression

 Yes

125 (74.4%)

43 (25.6%)

 No

8014 (76.0%)

2526 (24.0%)

  1. SBP Systolic Blood Pressure, DBP Diastolic Blood Pressure, MI Myocardial infarction
  2. aReference group, Normal blood pressure, 100 ≤ SBP < 120 mmHg & DBP < 80 mmHg
  3. bLow blood pressure, SBP < 100 mmHg