Table 1 Sociodemographic characteristics and critical variables of participants
Variable | Overall (N = 8272) | Cognitive impairment | P value | |
|---|---|---|---|---|
No (N = 6967) | Yes (N = 1305) | |||
Age(years) | 81.73 (10.97) | 79.98 (10.30) | 91.06 (9.65) | 0.00 |
Gender | Â | Â | Â | 0.00 |
 Female | 4318 (52.20) | 3422 (49.12) | 896 (68.66) | |
 Male | 3954 (47.80) | 3545 (50.88) | 409 (31.34) | |
Ethnic | Â | Â | Â | 0.03 |
 Non-Han | 431 (5.21) | 379 (5.44) | 52(3.98) | |
 Han | 7841 (94.79) | 6588 (94.56) | 1253(96.02) | |
Marriage | Â | Â | Â | 0.00 |
 divorced, widowed, or unmarried | 4224 (51.06) | 3211 (46.09) | 1013 (77.62) | |
 Married | 4048(48.94) | 3756 (53.91) | 292 (22.38) | |
Years of education | 4.07(4.46) | 4.55 (4.51) | 1.48 (3.05) | 0.00 |
Household registration | Â | Â | Â | 0.00 |
 Rural | 5600(67.70) | 4592 (65.91) | 1008 (77.24) | |
 Urban | 2672(32.30) | 2375 (34.09) | 297 (22.76) | |
Self-rated health | Â | Â | Â | 0.00 |
 Very poor | 70(0.85) | 46 (0.66) | 24 (1.84) | |
 Poor | 971(11.74) | 768 (11.02) | 203 (15.56) | |
 Fair | 3170(38.32) | 2624 (37.66) | 546 (41.84) | |
 Good | 2968(35.88) | 2551 (36.62) | 417 (31.95) | |
 Very good | 1093(13.21) | 978 (14.04) | 115 (8.81) | |
Socioeconomic status | Â | Â | Â | 0.00 |
 Very poor | 87(1.05) | 68 (0.98) | 19 (1.46) | |
 Poor | 669(8.09) | 523 (7.51) | 146 (11.19) | |
 Fair | 5768(69.73) | 4827 (69.28) | 941 (72.11) | |
 Good | 1498(18.11) | 1324 (19.00) | 174 (13.33) | |
 Very good | 250(3.02) | 225 (3.23) | 25 (1.92) | |
Living arrangement | Â | Â | Â | 0.31 |
alone | 1353(16.36) | 1127 (16.18) | 226 (17.32) | |
with household member(s) | 6919(83.64) | 5840 (83.82) | 5840 (82.68) | |
Healthy Lifestyles | 2.28(0.89) | 2.30 (0.92) | 2.14 (0.70) | 0.00 |
Depressive symptoms | 7.15(4.39) | 6.85 (4.24) | 8.75 (4.83) | 0.00 |
Cognitive function | 26.79(4.17) | 28.27 (1.80) | 18.90 (4.34) | 0.00 |