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Participants' demographic data (n = 637).
| Age (years), mean ± SD | 35.2 ± 16.9 | |
|---|---|---|
| Work status | ||
| Full time | 208 (32.7%) | |
| Part time | 59 (9.3%) | |
| Unemployed | 88 (13.8%) | |
| Student | 282 (44.3%) | |
| Living status | ||
| Alone | 158 (24.8%) | |
| With family or a partner | 470 (73.8%) | |
| With others | 9 (1.4%) | |
| Household income | ||
| ≤JPY 4,270,000 | 284 (44.6%) | |
| >JPY 4,270,000 | 353 (55.4%) |
