Table 6.
Risk factors associated with having lower Mini-Mental State Examination (MMSE) scores (<24) estimated by logistic regression analysis
| Independent variables | Odds ratio | 95% CI | P value |
|---|---|---|---|
| Age | 1.01 | 0.95 to 1.06 | 0.830 |
| Gender | 1.42 | 0.36 to 5.56 | 0.619 |
| Amount of education (years) | 0.74 | 0.57 to 0.97 | 0.05 |
| Duration of hemodialysis (years) | 1.03 | 0.93 to 1.13 | 0.608 |
| Erythrocyte count (104/mm3) | 1.00 | 0.98 to 1.01 | 0.537 |
| Albumin (g/dl) | 1.54 | 0.37 to 6.37 | 0.549 |
| Sodium (mEq/l) | 0.86 | 0.74 to 1.00 | 0.05 |
| Potassium (mEq/l) | 0.77 | 0.33 to 1.83 | 0.558 |
| Uric acid (mg/dl) | 0.79 | 0.52 to 1.20 | 0.265 |
| Creatinine (mg/dl) | 0.95 | 0.75 to 1.21 | 0.681 |
| Blood urea nitrogen (mg/dl) | 1.01 | 0.97 to 1.05 | 0.578 |
| Dry weight (kg) | 0.94 | 0.88 to 1.00 | 0.061 |
| Amount of hemodialysis (Kt/V) | 0.27 | 0.06 to 1.36 | 0.113 |
| History of diabetes mellitus | 2.07 | 0.66 to 6.46 | 0.211 |
| History of hypertension | 2.04 | 0.76 to 5.48 | 0.157 |
| History of heart disease | 1.16 | 0.34 to 4.02 | 0.810 |
| History of cerebrovascular disease | 3.07 | 0.98 to 9.66 | 0.055 |
The multiple logistic regression model included all above-mentioned factors as independent variables.