Table 2 Sociodemographic characteristics of sample groups - Unweighted frequency and weighted proportion
| Â | Age groups | |||||
|---|---|---|---|---|---|---|
| Â | Young adults | Middle-aged adults | The elderly | |||
| Â | N | % | N | % | N | % |
Sex | Â | Â | Â | Â | Â | Â |
 Male | 894 | 47.26 | 1137 | 44.88 | 589 | 41.68 |
 Female | 997 | 52.74 | 1393 | 55.12 | 826 | 58.32 |
Marital status | Â | Â | Â | Â | Â | Â |
 Never married | 932 | 50.28 | 122 | 4.33 | 12 | 0.64 |
 Currently married | 931 | 48.27 | 2137 | 86.23 | 889 | 64.16 |
 Other | 28 | 1.45 | 271 | 9.44 | 514 | 35.20 |
Household income | Â | Â | Â | Â | Â | Â |
 1st percentile | 216 | 11.62 | 468 | 17.46 | 773 | 52.11 |
 2nd percentile | 474 | 24.93 | 613 | 24.38 | 334 | 24.26 |
 3rd percentile | 611 | 31.25 | 700 | 28.30 | 201 | 14.93 |
 4th percentile | 590 | 32.20 | 749 | 29.86 | 107 | 8.70 |
Educational attainment | Â | Â | Â | Â | Â | Â |
 Less than high school graduation | 29 | 2.18 | 567 | 23.46 | 915 | 6.33 |
 High school graduation | 398 | 20.74 | 986 | 38.04 | 292 | 20.98 |
 College or more | 1464 | 77.08 | 977 | 38.49 | 208 | 14.69 |
Employment status | Â | Â | Â | Â | Â | Â |
 Currently employed | 1006 | 52.89 | 1415 | 55.48 | 195 | 14.21 |
 Currently unemployed | 885 | 47.11 | 1115 | 44.52 | 1220 | 85.79 |
Regular physical activity | Â | Â | Â | Â | Â | Â |
 Sedentary | 1231 | 64.44 | 1373 | 53.80 | 806 | 56.39 |
 Regular or some | 660 | 35.56 | 1157 | 46.20 | 609 | 43.61 |
Smoking status | Â | Â | Â | Â | Â | Â |
 Non-smoker | 1494 | 78.73 | 1999 | 79.20 | 1272 | 90.21 |
 Current smoker | 397 | 21.27 | 531 | 20.80 | 143 | 9.79 |
Drinking status | Â | Â | Â | Â | Â | Â |
 Non-drinker | 781 | 41.86 | 1326 | 52.10 | 1103 | 78.18 |
 Drinker | 1110 | 58.14 | 1204 | 47.90 | 312 | 21.82 |
Leisure(M/SD) | 21.69 | 7.03 | 18.06 | 6.47 | 14.02 | 3.93 |
Self-esteem(M/SD) | 33.32 | 4.72 | 33.10 | 4.64 | 30.99 | 4.48 |
Social support(M/SD) | 19.16 | 1.56 | 18.98 | 1.60 | 18.67 | 1.61 |
Social participation | Â | Â | Â | Â | Â | Â |
 Friendship network and hobby group(M/SD) | 8.16 | 3.05 | 8.67 | 3.48 | 6.94 | 3.33 |
 Instrumental social participation(M/SD) | 9.36 | 3.94 | 9.59 | 4.16 | 7.69 | 2.98 |
 Religious involvement(M/SD) | 1.92 | 1.10 | 2.06 | 1.17 | 1.91 | 1.23 |
Stress(M/SD) | 25.04 | 4.06 | 24.91 | 4.13 | 24.49 | 4.26 |
Depression(M/SD) | 37.51 | 7.91 | 39.21 | 8.21 | 44.33 | 8.03 |
Suicidal ideation | Â | Â | Â | Â | Â | Â |
 Never | 1820 | 96.34 | 2406 | 94.9 | 1316 | 93.12 |
 At least once in last 1 year | 71 | 3.66 | 124 | 5.10 | 99 | 6.88 |
Unweighted N | 1891 | Â | 2530 | Â | 1415 | Â |