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| Date of survey | : | 29/8-1/9/2005 | |
| Survey method | : | Telephone survey with interviewers | |
| Target population | : | Macau citizens of age 18 or above | |
| Sampling method | : | Telephone numbers were selected randomly from the Macau residential telephone directories. If more than one subject had been available, the one who had his/her birthday next was selected. | |
| Sample size | : | 523 successful cases | |
| Overall response rate | : | 80.3% | |
| Standard sampling error | : | Less than 4%（at 95% confidence level） |
