Contact informationBack
|
Date of survey |
: |
June 20 to 25, 2013 |
|
Survey method |
: |
Telephone survey conducted by telephone interviewers |
|
Target population |
: |
Cantonese-speaking citizens in Hong Kong of age 25 to 55 years |
|
Sampling method |
: |
Telephone numbers were selected randomly from residential telephone directories and mixed with additional numbers generated by computer. If more than one eligible subject had been available, the one who had his/her birthday next was selected. |
|
Sample size |
: |
520 successful cases |
|
Effective response rate |
: |
73.3% |
|
Std. sampling error |
: |
At 95% confidence level, the maximum sampling error of all percentages should be no more than +/-4.4 percentage points |
