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Date of survey | : | 1-9/12/2015 | |
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 | : | 520 successful cases | |
Overall response rate | : | 65.5% | |
Standard sampling error | : | Less than 4%(at 95% confidence level) |