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Table 2 Characteristics of the study population by suicidal ideation (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

  Reference a Suicidal ideation p-value
9509 (88.8%) 1199 (11.2%)
Sex    0.00
 Men 3368 (92.2%) 286 (7.8%)  
 Women 6141 (87.1%) 913 (12.9%)  
Age (mean), years 42.2 ± 14.4 44.1 ± 16.7 0.00
Age group    0.00
 19~ 29 1912 (87.5%) 274 (12.5%)  
 30~ 39 2757 (90.8%) 278 (9.2%)  
 40~ 49 2094 (90.5%) 220 (9.5%)  
 50~ 59 1459 (87.8%) 203 (12.2%)  
 60~ 69 793 (89.4%) 94 (10.6%)  
 ≥ 70 494 (79.2%) 130 (20.8%)  
Blood pressure    0.02
 Normotensive b 7260 (89.2%) 879 (10.8%)  
 SBP < 110 mmHg 6424 (88.8%) 814 (11.2%)  
 SBP < 100 mmHg 2249 (87.5%) 320 (12.5%)  
 SBP < 95 mmHg 942 (86.3%) 149 (13.7%)  
 SBP < 90 mmHg 266 (83.4%) 53 (16.6%)  
BMI (mean), kg/m2 22.6 ± 3.1 22.7 ± 3.6 0.50
BMI, kg/m2    0.01
 < 18.5 672 (85.9%) 110 (14.1%)  
 ≥ 18.5, < 25 6871 (89.3%) 825 (10.7%)  
 ≥ 25 1947 (88.1%) 262 (11.9%)  
Total cholesterol (mean), mg/ml 184.2 ± 34.4 184.7 ± 35.6 0.66
House income    0.00
 Elementary school 2137 (84.7%) 387 (15.3%)  
 Middle school 2307 (88.6%) 297 (11.4%)  
 High school 2418 (90.6%) 252 (9.4%)  
 College/University 2564 (91.1%) 249 (8.9%)  
Educational level    0.00
 Low 1049 (80.0%) 262 (20.0%)  
 Low to intermediate 721 (86.9%) 109 (13.1%)  
 Intermediate to high 3767 (89.2%) 458 (10.8%)  
 High 3970 (91.5%) 370 (8.5%)  
Marital status    0.00
 Single 2110 (86.2%) 338 (13.8%)  
 Married 6818 (90.0%) 756 (10.0%)  
 Rejection response 571 (84.6%) 104 (15.4%)  
Current smoke    0.01
 Yes 1836 (87.1%) 271 (12.9%)  
 No 7671 (89.2%) 928 (10.8%)  
Alcohol intake    0.02
 1 drink</month 3457 (89.0%) 427 (11.0%)  
 1~ 4 drink /month 3565 (89.5%) 418 (10.5%)  
 ≥ 2~ 3 drink /week 1550 (87.1%) 230 (12.9%)  
Depressed mood    0.00
 Yes 701 (54.3%) 590 (45.7%)  
 No 8807 (93.5%) 609 (6.5%)  
Stress perception    0.00
 Yes 2182 (75.8%) 695 (24.2%)  
 No 7327 (93.6%) 504 (6.4%)  
Diabetes mellitus    0.01
 Yes 271 (83.9%) 52 (16.1%)  
 No 9238 (89.0%) 1147 (11.0%)  
Stroke    0.00
 Yes 33 (71.7%) 13 (28.3%)  
 No 9476 (88.9%) 1186 (11.1%)  
MI/Angina pectoris    0.04
 Yes 93 (82.3%) 20 (17.7%)  
 No 9416 (88.9%) 1179 (11.1%)  
Depression    0.00
 Yes 84 (50.0%) 84 (50.0%)  
 No 9425 (89.4%) 1115 (10.6%)  
  1. SBP Systolic Blood Pressure, BMI Body Mass Index
  2. aReference: No suicidal ideation. b Normotensive: 100 ≤ SBP < 120 mmHg & DBP < 80 mmHg