Table 1.
Characteristics of baseline and follow-up respondents
| Sample for cross-sectional analyses (n=1011) |
Sample for prospective analyses (n=533) |
|
| Baseline | ||
| Gender, % men | 512 (51.2) | 276 (51.8) |
| Age, mean (SD) | 55.8 (4.3) | 54.6 (8.3) |
| Marital status, % married | 844 (84.3) | 454 (85.2) |
| Educational attainment, % with tertiary education | 536 (53.6) | 308 (57.8) |
| Household income (yen), % | ||
| <5 000 000 p.a. | 492 (49.2) | 244 (45.8) |
| 5 000 000 p.a.+ | 494 (49.4) | 283 (53.1) |
| Refused to answer or missing | 15 (1.5) | 6 (1.1) |
| Work status, % non-working | 743 (74.2) | 406 (76.2) |
| BMI, mean (SD) | 23 (3.2) | 22.9 (3.3) |
| MVPA (hour/week), mean (SD) | 9.3 (13.4) | 9.2 (12.4) |
| Screen time (hour/day), mean (SD) | 2.3 (1.9) | 2.3 (1.9) |
| Follow-up | ||
| Change in working status | – | |
| Keep working | – | 388 (72.8) |
| Start working | – | 17 (3.2) |
| Stop working | – | 18 (3.4) |
| Not working | – | 110 (20.6) |
| Screen time (hour/day), mean (SD) | – | 2.2 (1.7) |
BMI, body mass index; MVPA, moderate-to-vigorous physical activity; p.a, per annum.