Demographic characteristics (n=7987)
| Age (years) (mean, SD) | 55.4 (18.4) |
| Gender (N, %) | |
| Male | 3427 (42.9) |
| Female | 4560 (57.1) |
| BMI (kg/m2) (mean, SD) | 23.8 (3.8) |
| Dwelling site (N, %) | |
| Minamisoma city | 7236 (90.6) |
| Inside Fukushima | 525 (6.6) |
| Outside Fukushima | 226 (2.8) |
| Internal contamination (N, % of those detected) | 145 (1.8) |
| Product purchase pattern (N, % of those who considered the geographical origin of products) | |
| Fish | 2388 (29.9) |
| Meat | 2828 (35.4) |
| Rice | 2321 (29.1) |
| Vegetable/fruits | 3746 (46.9) |
| Mushrooms | 2138 (26.8) |
| Milk | 3024 (37.9) |
BMI, body mass index.