Table 1.
Demographic characteristics of the patients with or without cognitive impairment
| Characteristics | Cognitive impairment group (n = 139) | Normal cognition group (n = 87) | t/Z/χ2 value | p |
|---|---|---|---|---|
| Male gender, n (%) | 78 (56.1) | 45 (51.7) | 0.416 | 0.519 |
| Age, years | 65.0 [61.00, 71.00] | 59.00 [51.00, 64.00] | 5.508 | 0.000* |
| Lower education, n (%) | 65 (46.8) | 15 (17.2) | 20.392 | 0.000* |
| Smoking, n (%) | 45 (32.4) | 18 (20.7) | 3.634 | 0.057 |
| Alcohol, n (%) | 34 (24.5) | 18 (20.7) | 0.429 | 0.512 |
| Stroke, n (%) | 37 (26.6) | 13 (14.9) | 4.234 | 0.040* |
| Hypertension, n (%) | 96 (69.1) | 34 (39.1) | 19.689 | 0.000* |
| Diabetes, n (%) | 33 (23.7) | 11 (11.5) | 5.209 | 0.040* |
| Hyperlipemia, n (%) | 66 (47.5) | 40 (46.0) | 0.001 | 0.979 |
| Coronary disease, n (%) | 30 (20.1) | 10 (11.5) | 3.739 | 0.053 |
| TG, mmol/L | 1.3 [1.00, 1.97] | 1.29 [0.91, 1.95] | 0.627 | 0.530 |
| TC, mmol/L | 4.7±1.04 | 4.52±0.98 | 1.797 | 0.074 |
| LDL, mmol/L | 2.5 [2.01, 3.04] | 2.62 [2.20, 3.15] | −1.066 | 0.286 |
| HDL, mmol/L | 1.1 [2.01, 3.04] | 1.18 [1.06, 1.37] | −1.909 | 0.056 |
| Glucose, mmol/L | 5.4 [4.97, 6.30] | 5.38 [4.95, 5.86] | 0.632 | 0.527 |
| Systolic pressure, mm Hg | 150.0 [136.0, 164.0] | 137.0 [121.00, 152.00] | 4.554 | 0.000* |
| Diastolic pressure, mm Hg | 83.0 [76.0, 90.0] | 83.0 [73.00, 93.00] | 0.379 | 0.705 |
| Hcy, μmol/L | 13.0 [10.0, 17.0] | 11.0 [9.00, 16.00] | 2.366 | 0.018* |
| Uric acid, mmol/L | 388.0 [340.0, 434.0] | 334.0 [295.00, 398.00] | 4.015 | 0.000* |
| 25-(OH) D, ng/mL | 15.44±5.71 | 21.44±7.17 | −6.608 | 0.000* |
Values are presented as n (%), mean ± standard deviation, or median [25th and 75th interquartile range]. LDL, low-density lipoprotein cholesterol; HDL, high-density lipoprotein cholesterol; TC, total cholesterol; TG, triglyceride; Hcy, homocysteine.
*
p < 0.05, for the pairwise comparison between the cognitive impairment group and normal cognition group.