Participant Characteristics in Japan, China, and South Korea
| Age | Japan | China | South Korea | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| All | Male | Female | All | Male | Female | All | Male | Female | |||
| Twenties | 452 | 216 (43.2-52.4) |
236 (47.6-56.8) |
242 | 120 (43.3-55.8) |
122 (44.2-56.7) |
183 | 93 (43.6-58.0) |
90 (42.0-56.4) |
||
| Thirties | 372 | 196 (47.6-57.7) |
176 (42.3-52.4) |
170 | 86 (43.1-58.0) |
84 (42.0-56.9) |
145 | 71 (41.0-57.0) |
74 (43.0-59.0) |
||
| Forties | 412 | 206 (45.2-54.8) |
206 (45.2-54.8) |
206 | 103 (43.2-56.8) |
103 (43.2-56.8) |
164 | 82 (42.4-57.6) |
82 (42.4-57.6) |
||
| Fifties | 412 | 206 (45.2-54.8) |
206 (45.2-54.8) |
206 | 103 (43.2-56.8) |
103 (43.2-56.8) |
164 | 82 (42.4-57.6) |
82 (42.4-57.6) |
||
| Sixties | 412 | 206 (45.2-54.8) |
206 (45.2-54.8) |
206 | 103 (43.2-56.8) |
103 (43.2-56.8) |
164 | 82 (42.4-57.6) |
82 (42.4-57.6) |
||
| All | 2060 | 1030 | 1030 | 1030 | 515 | 515 | 820 | 410 | 410 | ||
| Mean age ± SD | 44.5 ± 14.1 (43.9-45.1) |
44.6 ± 14.1 (43.8-45.5) |
44.4 ± 14.1 (43.6-45.3) |
43.7 ± 13.4 (42.9-44.5) |
43.7 ± 13.4 (42.5-44.8) |
43.7 ± 13.5 (42.5-44.9) |
44.6 ± 13.5 (43.7-45.5) |
44.8 ± 13.6 (43.4-46.1) |
44.4 ± 13.3 (43.1-45.7) |
||
Data are expressed as n or n (95% CI).
The 95% CI for the prevalence is in parentheses.