Table 3. Background characteristics of validation study participants who completed 28-day diet record.
| Mito PHC area | Kashiwazaki PHC area | Chuo-higashi PHC area | Kamigoto PHC area | Miyako PHC area | Suita PHC area | 6 PHC area | ||||||||
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| mean | SD | mean | SD | mean | SD | mean | SD | mean | SD | mean | SD | mean | SD | |
| Male | ||||||||||||||
| n | 29 | 30 | 31 | 26 | 30 | 28 | 174 | |||||||
| Age (years old) | 57.2 | 6.5 | 61.6 | 6.1 | 59.5 | 7.2 | 55.4 | 7.6 | 55.4 | 8.0 | 63.9 | 6.5 | 58.9 | 7.6 |
| Height (cm) | 165.4 | 6.2 | 164.8 | 4.3 | 166.3 | 4.2 | 162.8 | 6.1 | 162.8 | 6.1 | 166.3 | 5.7 | 164.9 | 5.5 |
| Weight (kg) | 66.0 | 9.7 | 63.4 | 7.3 | 61.1 | 8.7 | 66.0 | 6.5 | 68.0 | 6.6 | 63.1 | 7.5 | 64.6 | 8.1 |
| BMI1 | 24.1 | 2.9 | 23.3 | 2.3 | 22.6 | 2.9 | 23.9 | 2.6 | 25.6 | 1.7 | 22.8 | 2.2 | 23.7 | 2.6 |
| Occupation | n | % | n | % | n | % | n | % | n | % | n | % | n | % |
| n (% of each subject) | 29 | 30 | 31 | 26 | 30 | 28 | 174 | |||||||
| Agricultural work | 8 | 27.6 | 9 | 30.0 | 11 | 35.5 | 1 | 3.8 | 3 | 10.0 | 0 | 0.0 | 32 | 18.4 |
| Forestry work | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 |
| Fishery work | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 | 1 | 3.8 | 0 | 0.0 | 0 | 0.0 | 1 | 0.6 |
| Employee | 19 | 65.5 | 12 | 40.0 | 16 | 51.6 | 18 | 69.2 | 18 | 60.0 | 15 | 53.6 | 98 | 56.3 |
| Self-employed | 4 | 13.8 | 7 | 23.3 | 0 | 0.0 | 3 | 11.5 | 3 | 10.0 | 2 | 7.1 | 19 | 10.9 |
| Professional | 4 | 13.8 | 1 | 3.3 | 0 | 0.0 | 2 | 7.7 | 3 | 10.0 | 1 | 3.6 | 11 | 6.3 |
| Housewife | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 |
| Unemployed | 2 | 6.9 | 4 | 13.3 | 5 | 16.1 | 2 | 7.7 | 6 | 20.0 | 11 | 39.3 | 30 | 17.2 |
| Other | 0 | 0.0 | 1 | 3.3 | 0 | 0.0 | 0 | 0.0 | 1 | 3.3 | 0 | 0.0 | 2 | 1.1 |
| Female | ||||||||||||||
| n | 30 | 30 | 30 | 27 | 30 | 29 | 176 | |||||||
| Age (years old) | 54.3 | 6.4 | 57.9 | 6.4 | 56.6 | 7.8 | 53.1 | 6.4 | 53.9 | 7.4 | 59.4 | 6.0 | 55.9 | 7.1 |
| Height (cm) | 152.1 | 4.7 | 153.1 | 5.4 | 151.1 | 5.9 | 154.3 | 4.8 | 151.9 | 4.7 | 153.7 | 4.5 | 152.7 | 5.1 |
| Weight (kg) | 54.6 | 5.5 | 55.1 | 10.0 | 53.6 | 7.8 | 57.2 | 8.0 | 56.7 | 5.5 | 54.1 | 8.4 | 55.2 | 7.7 |
| BMI1 | 23.6 | 2.4 | 23.5 | 3.9 | 23.4 | 3.1 | 24.0 | 3.2 | 24.6 | 2.7 | 22.9 | 3.7 | 23.7 | 3.2 |
| Occupation | n | % | n | % | n | % | n | % | n | % | n | % | n | % |
| n (% of each subjects) | 30 | 30 | 30 | 27 | 30 | 29 | 176 | |||||||
| Agricultural work | 8 | 26.7 | 2 | 6.7 | 13 | 43.3 | 0 | 0.0 | 1 | 3.3 | 0 | 0.0 | 24 | 13.6 |
| Forestry work | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 |
| Fishery work | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 | 0 | 0.0 |
| Employee | 9 | 30.0 | 8 | 26.7 | 6 | 20.0 | 6 | 22.2 | 17 | 56.7 | 8 | 27.6 | 54 | 30.7 |
| Self-employed | 1 | 3.3 | 3 | 10.0 | 0 | 0.0 | 4 | 14.8 | 0 | 0.0 | 1 | 3.4 | 9 | 5.1 |
| Professional | 1 | 3.3 | 0 | 0.0 | 1 | 3.3 | 1 | 3.7 | 6 | 20.0 | 0 | 0.0 | 9 | 5.1 |
| Housewife | 12 | 40.0 | 19 | 63.3 | 10 | 33.3 | 17 | 63.0 | 11 | 36.7 | 20 | 69.0 | 89 | 50.6 |
| Unemployed | 2 | 6.7 | 1 | 3.3 | 2 | 6.7 | 1 | 3.7 | 2 | 6.7 | 1 | 3.4 | 9 | 5.1 |
| Other | 2 | 6.7 | 1 | 3.3 | 2 | 6.7 | 2 | 7.4 | 1 | 3.3 | 1 | 3.4 | 9 | 5.1 |
1Body Mass Index: height (m)/weight (kg)2