Table 1. Weighted proportions of MCI, non-MCI, aMCI, na-MCI groups, and the associations with psychosocial and lifestyle factors.
| weighted prevalence | associations | weighted prevalence | associations | |||||||
| MCI (n=32) | non-MCI (n=2133) | chi-square | df | p value | aMCI (n=25) | na-MCI (n=2140) | chi-square | df | p value | |
| Age groups | 9.64 | 2 | 0.0232 | 8.2483 | 2 | 0.0359 | ||||
| 60-74 years old | 0.85% (13) | 99.15% (1435) | 0.7% (9) | 99.3% (1439) | ||||||
| 75-84 years old | 2.42% (12) | 97.58% (523) | 1.6% (9) | 98.4% (526) | ||||||
| 85 years and above | 3.70% (7) | 96.30% (175) | 3.7% (7) | 96.3% (175) | ||||||
| Gender | 0.16 | 1 | 0.7634 | 0.9554 | 1 | 0.4696 | ||||
| Male | 1.3% (19) | 98.70% (974) | 1.1% (17) | 98.9% (976) | ||||||
| Female | 1.12% (13) | 98.89% (1159) | 0.7% (8) | 99.3% (1164) | ||||||
| Education levels | 4.42 | 3 | 0.5269 | 1.4039 | 3 | 0.8541 | ||||
| None | 2.19% (6) | 97.81% (336) | 0.8% (3) | 99.2% (339) | ||||||
| Primary | 1.29% (20) | 98.71% (1072) | 1.1% (18) | 98.9% (1074) | ||||||
| Secondary | 0.58% (4) | 99.42% (479) | 0.5% (3) | 99.5% (480) | ||||||
| Tertiary | 0.95% (2) | 99.05% (242) | 0.9% (1) | 99.1% (243) | ||||||
| Smoking history | 3.40 | 2 | 0.3044 | 7.07 | 2 | 0.0606 | ||||
| Never smoked | 1.09% (20) | 98.91% (1566) | 0.79% (14) | 99.21% (1572) | ||||||
| Current smokers | 2.49% (5) | 97.51% (212) | 2.49% (5) | 97.51% (212) | ||||||
| Former smokers | 0.89% (7) | 99.11% (355) | 0.43% (6) | 99.57% (356) | ||||||
| Had at least 12 drinks in a year | 3.02 | 1 | 0.1771 | 0.48 | 1 | 0.1639 | ||||
| Yes | 0.82% (13) | 99.18% (1257) | 0.5% (10) | 99.5% (879) | ||||||
| No | 1.64% (19) | 98.36% (876) | 1.3% (15) | 98.7% (1261) | ||||||
| Experienced loneliness | 1.41 | 1 | 0.289 | 3.11 | 1 | 0.1275 | ||||
| Yes | 1.94% (10) | 98.04% (329) | 1.88% (9) | 98.12% (330) | ||||||
| No | 1.10% (22) | 98.9% (1804) | 0.77% (16) | 99.23% (1810) | ||||||
| Physically active | 12.96 | 1 | 0.0075 | 15.95 | 1 | 0.0024 | ||||
| Yes | 0.78% (20) | 99.22% (1583) | 0.50% (14) | 99.50% (1589) | ||||||
| No | 2.91% (12) | 97.09% (550) | 2.55% (11) | 97.45% (551) | ||||||
note: the results of two sets of analyses between MCI and non-MCI, and between aMCI and na-MCI are reported in this table; the associations reported refer to results from chi-square test of independence between various categorical variables; cases of 10/66 and DSM-IV dementia were removed from all analyses; values in bold indicate significance at p <.05.