Table 1.
Demographic characteristics of survey respondents
| Number | Percentage | |
|---|---|---|
| Sex | ||
| Male | 525 | 50.0 |
| Female | 525 | 50.0 |
| Age | ||
| 20–29 | 174 | 16.6 |
| 30–39 | 176 | 16.8 |
| 40–49 | 175 | 16.7 |
| 50–59 | 175 | 16.7 |
| 60–69 | 175 | 16.7 |
| 70–79 | 175 | 16.7 |
| Region | ||
| Tokyo | 208 | 19.8 |
| Sapporo | 210 | 20.0 |
| Fukuoka | 211 | 20.1 |
| Osaka | 211 | 20.1 |
| Nagoya | 210 | 20.0 |
| Employment | ||
| Full-time worker (permanent) | 397 | 37.8 |
| Full-time worker (non-permanent) | 53 | 5.0 |
| Part-time worker | 198 | 18.9 |
| Self-employed or manager | 63 | 6.0 |
| Housemaker | 191 | 18.2 |
| Retired | 95 | 9.0 |
| Student | 48 | 4.6 |
| Other | 5 | 0.5 |
| Household income (JPY 10,000) | ||
| < 100 | 25 | 2.4 |
| 100–200 | 48 | 4.6 |
| 200–400 | 210 | 20.0 |
| 400–600 | 234 | 22.3 |
| 600–1000 | 284 | 27.0 |
| 1000–1500 | 73 | 7.0 |
| 1500–2000 | 11 | 1.0 |
| > 2000 | 6 | 0.6 |
| No answer | 159 | 15.1 |
| Education | ||
| Elementary or junior high school | 35 | 3.3 |
| High school | 418 | 39.8 |
| Vocational school | 138 | 13.1 |
| College | 118 | 11.2 |
| University | 329 | 31.3 |
| Graduate school | 12 | 1.1 |
| Marital status | ||
| Unmarried | 278 | 26.5 |
| Married | 636 | 60.6 |
| Divorced/widowed | 136 | 13.0 |