Table 1. Comparison of general demographic data of the three groups.
| Variables | MCI (n=596) | Dementia (n=188) | Normal (n=2163) | F or X2 | P value |
| Age, years | 73.78±8.232 | 78.71±7.524 | 70.05±7.495 | 141.786 | <0.001* |
| Education, years | 6.70±3.217 | 6.54±2.994 | 6.85±3.512 | 0.966 | 0.381 |
| Male, n (%) | 226 (37.9) | 67 (35.6) | 1045 (48.3) | 28.083 | <0.001* |
| Smoker, n (%) | 143 (24.0) | 41 (21.8) | 633 (29.3) | 9.986 | 0.007* |
| Drinker, n (%) | 117 (19.6) | 29 (15.4) | 458 (21.2) | 3.851 | 0.146 |
| Diabetes, n (%) | 106 (17.8) | 49 (26.1) | 337 (15.6) | 14.307 | <0.001* |
| Hypertension, n (%) | 288 (48.3) | 110 (58.5) | 1003 (46.4) | 10.405 | 0.006* |
| BMI | |||||
| <18.5 kg/m2 | 49 (8.2) | 23 (12.2) | 95 (4.4) | 40.465 | <0.001* |
| ≥18.5, <24.0 kg/m2 | 314 (52.7) | 95 (50.5) | 1071 (49.5) | ||
| ≥24.0, <28.0 kg/m2 | 175 (29.4) | 47 (25.0) | 782 (32.2) | ||
| ≥28.0 kg/m2 | 58 (9.7) | 23 (12.2) | 215 (9.9) | ||
| MMSE | 22.43±5.636 | 13.96±7.433 | 26.85±3.445 | 892.522 | <0.001* |
| MoCA | 16.75±6.160 | 9.10±6.274 | 22.86±5.135 | 728.191 | <0.001* |
*
means pP<0.05; BMI means ; MMSE means Mini-mental State Examination; MoCA means Montreal Cognitive Assessment.
BMIbody mass indexMCImild cognitive impairmentMMSEMini-Mental State ExaminationMoCAMontreal Cognitive Assessment