Patient demographics
| Country | Mean age yrs | Females % | Smokers (responders) % |
| China | 43.9 | 51.5 | 20.7 |
| Hong Kong | 31.8 | 36.8 | 21.3 |
| Korea | 29.9 | 59.1 | 19.6 |
| Malaysia | 28.7 | 53.0 | 19.1 |
| The Philippines | 22.8 | 53.8 | 21.8 |
| Singapore | 25.2 | 54.8 | 16.3 |
| Taiwan | 32.0 | 46.8 | 23.1 |
| Vietnam | 36.7 | 57.5 | 12.1 |
| Total | 31.4 | 51.6 | 19.1 |