Comparison of Japanese demographics and the study sample
| Sex | Age (years) | Japan’s population | This study | |||
|---|---|---|---|---|---|---|
| n | (a) (%) | n | (b) (%) | (a) − (b) (%) | ||
| Male | 20s | 6,016,000 | 8.2 | 159 | 10.6 | −2.4 |
| 30s | 6,626,000 | 9.0 | 144 | 9.6 | −0.6 | |
| 40s | 8,636,000 | 11.7 | 156 | 10.4 | 1.3 | |
| 50s | 8,664,000 | 11.7 | 199 | 13.3 | −1.5 | |
| 60s | 7,278,000 | 9.9 | 120 | 8.0 | 1.9 | |
| Female | 20s | 5,761,000 | 7.8 | 170 | 11.3 | −3.5 |
| 30s | 6,380,000 | 8.6 | 160 | 10.7 | −2.0 | |
| 40s | 8,353,000 | 11.3 | 140 | 9.3 | 2.0 | |
| 50s | 8,528,000 | 11.6 | 147 | 9.8 | 1.8 | |
| 60s | 7,533,000 | 10.2 | 105 | 7.0 | 3.2 | |
| Total | 73,775,000 | 100.0 | 1,500 | 100.0 | − | |
| Age (years) | Japan’s population | This study | ||||
|---|---|---|---|---|---|---|
| (a) (%) | (b) (%) | (a) − (b) (%) | ||||
| 20s | 6,016,000 | 8.2 | 159 | 10.6 | −2.4 | |
| 30s | 6,626,000 | 9.0 | 144 | 9.6 | −0.6 | |
| 40s | 8,636,000 | 11.7 | 156 | 10.4 | 1.3 | |
| 50s | 8,664,000 | 11.7 | 199 | 13.3 | −1.5 | |
| 60s | 7,278,000 | 9.9 | 120 | 8.0 | 1.9 | |
| 20s | 5,761,000 | 7.8 | 170 | 11.3 | −3.5 | |
| 30s | 6,380,000 | 8.6 | 160 | 10.7 | −2.0 | |
| 40s | 8,353,000 | 11.3 | 140 | 9.3 | 2.0 | |
| 50s | 8,528,000 | 11.6 | 147 | 9.8 | 1.8 | |
| 60s | 7,533,000 | 10.2 | 105 | 7.0 | 3.2 | |
| Total | 73,775,000 | 100.0 | 1,500 | 100.0 | − | |
Notes: n = number of people; % = percentage
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