Table 1. General characteristics of study population according to suicidal ideation (n = 302).
| Variables | Suicidal ideation (-) (n = 279) |
Suicidal ideation (+) (n = 23) |
P value |
|---|---|---|---|
| Age, yr | 74.9 ± 5.0 | 75.7 ± 5.2 | 0.438 |
| Women | 151 (54.1) | 12 (52.2) | 0.857 |
| Height, cm | 154.5 ± 9.2 | 153.8 ± 11.4 | 0.736 |
| Body weight, kg | 59.4 ± 9.4 | 58.4 ± 11.3 | 0.625 |
| Waist circumference, cm | 86.2 ± 8.9 | 85.8 ± 9.3 | 0.837 |
| Body mass index, kg/m2 | 24.9 ± 3.2 | 24.6 ± 3.6 | 0.713 |
| Waist-to-hip ratio | 0.91 ± 0.06 | 0.91 ± 0.05 | 0.954 |
| Waist-to-height ratio | 0.56 ± 0.06 | 0.56 ± 0.06 | 0.989 |
| Total body fat percentage, % | 30.3 ± 8.9 | 28.8 ± 9.2 | 0.418 |
| ASM, kg | 15.2 ± 3.4 | 14.9 ± 3.5 | 0.631 |
| ASM/Wt, % | 25.7 ± 4.8 | 25.6 ± 4.3 | 0.885 |
| Low muscle mass | 55 (19.7) | 5 (21.7) | 0.815 |
| Handgrip strength, kg | 25.5 ± 8.4 | 23.4 ± 8.2 | 0.256 |
| 6-meter usual gait speed, m/sec | 1.00 ± 0.26 | 0.86 ± 0.25 | 0.019 |
| Low muscle function | 104 (37.3) | 13 (56.5) | 0.069 |
| Sarcopenia | 23 (8.2) | 4 (17.4) | 0.139 |
| Current smoking | 24 (8.6) | 3 (13.0) | 0.473 |
| Alcohol drinking | 76 (31.5) | 11 (55.0) | 0.032 |
| Regular exercise | 66 (23.7) | 8 (34.8) | 0.233 |
| Monthly income, < 60 × 104 KRW | 179 (70.8) | 17 (81.0) | 0.452 |
| Education level, < 6 yr | 186 (66.7) | 18 (78.3) | 0.506 |
| KGDS score | 14.6 ± 7.0 | 21.1 ± 4.7 | < 0.001 |
| Depressive symptom | 153 (54.8) | 20 (87.0) | 0.003 |
| BSI score | 1.7 ± 2.2 | 15.6 ± 6.4 | < 0.001 |
Data are expressed as mean ± standard deviation or number (percent), as appropriate. P values are from Student’s t-test or χ2 test. ASM, appendicular skeletal muscle mass; Wt, body weight; KRW, Korean won; KGDS, Korean version of the Geriatric Depression Scale; BSI, Beck Scale for Suicide Ideation.