Year | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Total | 1993 | 1999 | 2007 | |||||||
n = 5070 | n = 914 | n = 1792 | n = 2292 | |||||||
Items | n | % | n | % | n | % | n | % | chi-sq | p-value |
In a bad mood | ||||||||||
none | 3317 | 65.42 | 600 | 65.65 | 1159 | 64.68 | 1558 | 67.98 | 32.66 | <0.0001 |
a little | 524 | 10.34 | 68 | 7.44 | 231 | 12.89 | 225 | 9.82 | ||
sometimes | 755 | 14.89 | 150 | 16.41 | 256 | 14.29 | 349 | 15.23 | ||
often or always | 402 | 7.93 | 96 | 10.50 | 146 | 8.15 | 160 | 6.98 | ||
Lonely | ||||||||||
none | 3905 | 77.02 | 665 | 72.76 | 1336 | 74.55 | 1904 | 83.07 | 106.87 | <0.0001 |
a little | 343 | 6.77 | 44 | 4.81 | 176 | 9.82 | 123 | 5.37 | ||
sometimes | 452 | 8.92 | 129 | 14.11 | 154 | 8.59 | 169 | 7.37 | ||
often or always | 298 | 5.88 | 76 | 8.32 | 126 | 7.03 | 96 | 4.19 | ||
Unfriendly | ||||||||||
none | 4508 | 88.92 | 805 | 88.07 | 1563 | 87.22 | 2140 | 93.37 | 52.03 | <0.0001 |
a little | 249 | 4.91 | 48 | 5.25 | 121 | 6.75 | 80 | 3.49 | ||
sometimes | 158 | 3.12 | 40 | 4.38 | 69 | 3.85 | 49 | 2.14 | ||
often or always | 83 | 1.64 | 21 | 2.30 | 39 | 2.18 | 23 | 1.00 | ||
Felt sad | ||||||||||
none | 3998 | 78.86 | 694 | 75.93 | 1379 | 76.95 | 1925 | 83.99 | 57.36 | <0.0001 |
a little | 379 | 7.48 | 62 | 6.78 | 167 | 9.32 | 150 | 6.54 | ||
sometimes | 402 | 7.93 | 103 | 11.27 | 152 | 8.48 | 147 | 6.41 | ||
often or always | 219 | 4.32 | 55 | 6.02 | 94 | 5.25 | 70 | 3.05 | ||
Have no energy for things | ||||||||||
none | 3548 | 69.98 | 613 | 67.07 | 1211 | 67.58 | 1724 | 75.22 | 51.75 | <0.0001 |
a little | 471 | 9.29 | 72 | 7.88 | 199 | 11.10 | 200 | 8.73 | ||
sometimes | 597 | 11.78 | 142 | 15.54 | 226 | 12.61 | 229 | 9.99 | ||
often or always | 382 | 7.53 | 87 | 9.52 | 156 | 8.71 | 139 | 6.06 | ||
Total CES-D scores | ||||||||||
0 ~ 5 | 4243 | 83.69 | 733 | 80.20 | 1483 | 82.76 | 2027 | 88.44 | 50.53 | <0.0001 |
6 ~ 10 | 561 | 11.07 | 127 | 13.89 | 223 | 12.44 | 211 | 9.21 | ||
11 ~ 15 | 194 | 3.83 | 54 | 5.91 | 86 | 4.80 | 54 | 2.36 |