Table 1. Characteristics of the analytic sample in baseline and follow-up survey.
JPY, Japanese Yen.
| Baseline survey in August 2010 | Follow-up survey in October 2013 | |||||||
| n* | % | Mean | SD | n* | % | Mean | SD | |
| Relocation† | ||||||||
| No | — | — | — | — | 3125 | 94.7 | — | — |
| Group relocation | — | — | — | — | 79 | 2.4 | — | — |
| Individual relocation | — | — | — | — | 96 | 2.9 | — | — |
| Total | — | — | — | — | 3300 | 100 | — | — |
| Loss of relatives and/or friends† | ||||||||
| No | — | — | — | — | 2080 | 62.0 | — | — |
| Yes | — | — | — | — | 1277 | 38.0 | — | — |
| Total | — | — | — | — | 3357 | 100 | — | — |
| Age | ||||||||
| (continuous) | 3421 | — | 73.3 | 6.0 | 3421 | — | 76.5 | 6.0 |
| Equivalent income | ||||||||
| Under 2.0 million JPY | 1365 | 48.6 | — | — | 1523 | 52.9 | — | — |
| 2.0 million JPY and over | 1442 | 51.4 | — | — | 1354 | 47.1 | — | — |
| Total | 2807 | 100 | — | — | 2877 | 100 | — | — |
| Employment status | ||||||||
| Nonemployment | 2465 | 81.6 | — | — | 2871 | 86.6 | — | — |
| Employment | 554 | 18.4 | — | — | 444 | 13.4 | — | — |
| Total | 3019 | 100 | — | — | 3315 | 100 | — | — |
| Marital status (divorce or bereavement) | ||||||||
| No (married) | 2404 | 74.0 | — | — | 2305 | 69.6 | — | — |
| Yes | 843 | 26.0 | — | — | 1005 | 30.4 | — | — |
| Total | 3247 | 100 | — | — | 3310 | 100 | — | — |
| Living alone | ||||||||
| No | 3028 | 90.9 | — | — | 2975 | 88.7 | — | — |
| Yes | 303 | 9.1 | — | — | 380 | 11.3 | — | — |
| Total | 3331 | 100 | — | — | 3355 | 100 | — | — |
| Depressive symptoms | ||||||||
| Lower risk (≤4) | 2054 | 69.6 | — | — | 2038 | 68.4 | — | — |
| Higher risk (≥5) | 899 | 30.4 | — | — | 943 | 31.6 | — | — |
| Total | 2953 | 100 | — | — | 2981 | 100 | — | — |
| Mutual help | ||||||||
| 1: Not at all, 5: Very much | 3321 | — | 3.54 | 0.82 | 3346 | — | 3.54 | 0.79 |
| Trust | ||||||||
| 1: Not at all, 5: Very much | 3352 | — | 3.76 | 0.76 | 3372 | — | 3.74 | 0.71 |
| Community attachment | ||||||||
| 1: Not at all, 5: Very much | 3344 | — | 4.00 | 0.82 | 3375 | — | 3.96 | 0.82 |
| Frequency meeting with friends | ||||||||
| 1: Rarely, 6: Almost everyday | 3289 | — | 3.76 | 1.47 | 3375 | — | 3.66 | 1.55 |
| Number of friends who met for the past month | ||||||||
| 1: None, 5: 10 or more | 3260 | — | 3.61 | 1.26 | 3368 | — | 3.45 | 1.34 |
| Frequency participating to sports club | ||||||||
| 1: None, 6: Almost everyday | 2880 | — | 1.88 | 1.44 | 3280 | — | 1.81 | 1.43 |
| Frequency participating to hobby club | ||||||||
| 1: None, 6: Almost everyday | 2936 | — | 2.28 | 1.46 | 3287 | — | 1.93 | 1.39 |
| Sex (time-invariant variable)‡ | ||||||||
| Male | 1518 | 44.4 | — | — | — | — | — | — |
| Female | 1903 | 55.6 | — | — | — | — | — | — |
| Total | 3421 | 100 | — | — | — | — | — | — |
| Educational attainment (time-invariant variable)‡ | ||||||||
| 9 years and under | 1159 | 35.1 | — | — | — | — | — | — |
| 10 years and over | 2140 | 64.9 | — | — | — | — | — | — |
| Total | 3299 | 100 | — | — | — | — | — | — |
*Almost all items include missing values (overall analytic sample is 3421).
†Empty cells at baseline due to data taken before the disaster.
‡Empty cells at follow-up due to time-invariant variables.