Table 1 Sociodemographic and clinical features
Subgroup | Non-Elderly n(%) | Elderly n(%) | X2 | P Value |
|---|---|---|---|---|
Gender |  |  | 28.432 |  < .001 |
 Male | 693(31.5) | 2567(37.8) |  |  |
 Female | 1509(68.5) | 4231(62.2) |  |  |
Education |  |  | 504.549 |  < .001 |
 Middle school and below | 670(30.4) | 3481(51.2) |  |  |
 High school | 617(28.0) | 2010(29.6) |  |  |
 College | 859(39.1) | 1262(18.5) |  |  |
 Master and above | 56(2.5) | 45(0.7) |  |  |
Marital status |  |  | 36.605 |  < .001 |
 Never married | 172(7.8) | 307(4.5) |  |  |
 Married | 1842(83.7) | 5868(86.4) |  |  |
 Divorced | 23(1.0) | 90(1.3) |  |  |
 Widowed | 165(7.5) | 533(7.8) |  |  |
Hypertension |  |  | 807.174 |  < .001 |
 Yes | 409(18.5) | 3621(53.1) |  |  |
 No | 1797(81.5) | 3193(46.9) |  |  |
Diabetes mellitus |  |  | 280.303 |  < .001 |
 Yes | 190(8.6) | 1731(25.4) |  |  |
 No | 2016(91.4) | 5083(74.6) |  |  |
Cardio/Cerebrovascular disease |  |  | 418.438 |  < .001 |
 Yes | 154(7.0) | 1910(28.0) |  |  |
 No | 2052(93.0) | 4904(72.0) |  |  |
Endocrine and metabolic disease except DM | Â | 3.899 | .048 | |
 Yes | 14(0.6) | 76(1.1) |  |  |
 No | 2192(99.4) | 6738(98.9) |  |  |
Other diseases | Â | Â | 2.420 | .120 |
 Yes | 29(1.3) | 123(1.8) |  |  |
 No | 2177(98.7) | 6691(98.2) |  |  |
Surgery |  |  | 16.224 |  < .001 |
 Yes | 4(0.2) | 75(1.1) |  |  |
 No | 2202(99.8) | 6739(98.9) |  |  |
Antipsychotics |  |  | 34.016 |  < .001 |
 Yes | 8(0.4) | 154(2.3) |  |  |
 No | 2198(99.6) | 6660(97.7) |  |  |