Table 2.
Association of cognitive impairment with other factors in the old adults of this study.
| Univariate analysis | Multivariate analysis | |||
|---|---|---|---|---|
| OR (95% CI) | p | OR (95% CI) | p | |
| Age(years) | 1.05 (1.02, 1.08) | 0.0009 | 1.02 (0.96, 1.07) | 0.5579 |
| Sex, female versus male | 1.23 (0.87, 1.75) | 0.2422 | 1.78 (0.71, 4.47) | 0.2168 |
| Education | ||||
| Junior high school versus primary school or below | 0.48 (0.17, 1.37) | 0.1687 | 0.47 (0.12, 1.82) | 0.2734 |
| Senior high school versus primary school or below | 0.19 (0.07, 0.50) | 0.0009 | 0.28 (0.07, 1.04) | 0.0576 |
| University or above versus primary school or below | 0.20 (0.07, 0.51) | 0.0009 | 0.34 (0.09, 1.25) | 0.1040 |
| Widowed or divorced versus married | 0.68 (0.47, 0.97) | 0.0357 | 1.03 (0.60, 1.77) | 0.9104 |
| Taken care of by others | 2.27 (1.53, 3.35) | <0.0001 | 2.52 (1.43, 4.45) | 0.0015 |
| Household income monthly | ||||
| 5,000¥–10,000¥ versus ≤5,000¥ | 1.08 (0.62, 1.89) | 0.7797 | 0.76 (0.32, 1.84) | 0.5468 |
| 10,000¥–15,000¥ versus ≤5,000¥ | 0.46 (0.25, 0.86) | 0.0148 | 0.29 (0.11, 0.79) | 0.0152 |
| >15,000¥ versus ≤5,000¥ | 0.76 (0.46, 1.25) | 0.2738 | 0.30 (0.10, 0.86) | 0.0258 |
| Smoking status | ||||
| Former versus never | 1.08 (0.67, 1.74) | 0.7632 | 1.65 (0.76, 3.59) | 0.2031 |
| Current versus never | 1.70 (0.45, 6.36) | 0.4312 | 8.07 (0.81, 80.46) | 0.0751 |
| BMI(kg/m2) | ||||
| Underweight versus normal | 2.43 (0.89, 6.60) | 0.0829 | 0.80 (0.11, 5.99) | 0.8306 |
| Overweight versus normal | 0.76 (0.53, 1.11) | 0.1522 | 0.52 (0.28, 0.98) | 0.0416 |
| Obesity versus normal | 1.25 (0.69, 2.27) | 0.4648 | 0.69 (0.24, 1.94) | 0.4796 |
| Waist to hip ratio | 0.85 (0.10, 6.97) | 0.8831 | 3.67 (0.09, 143.31) | 0.4865 |
| SMI | 0.95 (0.84, 1.07) | 0.4169 | 1.13 (0.76, 1.68) | 0.5504 |
| ADL disability | 1.77 (1.22, 2.56) | 0.0024 | 1.37 (0.82, 2.31) | 0.2307 |
| IADL disability | 3.40 (2.37, 4.88) | <0.0001 | 2.22 (1.28, 3.85) | 0.0044 |
| Anxiety | 1.48 (0.82, 2.67) | 0.1958 | 0.85 (0.33, 2.19) | 0.7291 |
| Depression | 2.77 (1.44, 5.33) | 0.0023 | 2.85 (1.16, 6.99) | 0.0218 |
| Poor sleep quality | 1.42 (0.98, 2.04) | 0.0619 | 1.20 (0.72, 1.99) | 0.4873 |
| Malnutrition | 2.22 (1.22, 4.04) | 0.0092 | 3.96 (0.95, 16.51) | 0.0591 |
| Comorbidity | 1.02 (0.58, 1.80) | 0.9356 | 0.85 (0.37, 1.96) | 0.7010 |
| Polypharmacy | 1.33 (0.90, 1.96) | 0.1474 | 1.13 (0.64, 2.00) | 0.6768 |
| Fall history in the last year | 1.16 (0.73, 1.86) | 0.5257 | 0.75 (0.38, 1.48) | 0.4135 |
| Low gait speed | 2.50 (1.58, 3.95) | <0.0001 | 1.55 (0.83, 2.89) | 0.1725 |
| Low grip strength | 2.56 (1.75, 3.73) | <0.0001 | 2.33 (1.29, 4.22) | 0.0050 |