Table 1.
Baseline characteristics of all subjects according to degree of depressive symptoms
| Variables | Depressive symptoms | P value | ||
| None (n=1053) | Mild (n=227) | Moderate to severe (n=54) | ||
| Male, n (%) | 714 (67.8) | 120 (52.9) | 26 (48.1) | <0.001 |
| Age, years, n (%) | 0.855 | |||
| <40 | 324 (30.8) | 67 (29.5) | 14 (25.9) | |
| 40–60 | 562 (53.4) | 124 (54.6) | 33 (61.1) | |
| ≥60 | 167 (15.9) | 36 (15.9) | 7 (13.0) | |
| Smoking, n (%) | 490 (46.5) | 98 (43.2) | 16 (29.6) | 0.040 |
| BP categories, n (%) | 0.148 | |||
| Optimal | 368 (34.9) | 75 (33.0) | 17 (31.5) | |
| Normal and high-normal | 437 (41.5) | 113 (49.8) | 24 (44.4) | |
| Hypertension | 248 (23.6) | 39 (17.2) | 13 (24.1) | |
| Diabetes mellitus, n (%) | 165 (15.7) | 40 (17.6) | 13 (24.1) | 0.225 |
| Dyslipidaemia, n (%) | 686 (65.1) | 165 (72.7) | 37 (68.5) | 0.088 |
| SBP, mm Hg | 126.1±16.6 | 125.0±16.5 | 127.9±14.7 | 0.445 |
| DBP, mm Hg | 75.0±10.5 | 74.4±9.7 | 73.8±8.5 | 0.513 |
| FBG, mmol/L | 5.30±1.58 | 5.32±1.42 | 5.64±1.92 | 0.275 |
| TC, mmol/L | 5.00±1.04 | 5.07±1.04 | 5.27±1.17 | 0.134 |
| TG, mmol/L | 2.12±1.57 | 2.07±1.21 | 2.07±1.04 | 0.881 |
| HDL-C, mmol/L | 1.49±0.37 | 1.50±0.38 | 1.49±0.38 | 0.996 |
| LDL-C, mmol/L | 2.63±0.74 | 2.69±0.74 | 2.86±0.82 | 0.057 |
| BMI, kg/m2, n (%) | 0.061 | |||
| <24 | 462 (43.9) | 102 (45.1) | 28 (51.9) | |
| 24–28 | 405 (38.5) | 69 (30.5) | 18 (33.3) | |
| ≥28 | 186 (17.7) | 55 (24.3) | 8 (14.8) | |
| PHQ-9 score | 1.27±1.39 | 6.47±1.36 | 13.20±3.22 | <0.001 |
| baPWV, cm/s | 1343.6±264.5 | 1372.9±312.3 | 1436.5±314.4 | 0.025 |
Data are presented as mean±SD or n (percentage) as appropriate.
baPWV, brachial-ankle pulse wave velocity; BMI, body mass index; BP, blood pressure; DBP, diastolic blood pressure; FBG, fasting blood glucose; HDL-C, high-density lipoprotein cholesterol; LDL-C, low-density lipoprotein cholesterol; PHQ-9, Patient Health Questionnaire-9; SBP, systolic blood pressure; TC, total cholesterol; TG, triglyceride.