|Date of survey||:||23 - 30/3/2005|
|Survey method||:||Telephone survey with interviewers|
|Target population||:||Cantonese-speaking population of Hong Kong of age 18 or above|
Standard POP telephone sampling method was used. Telephone numbers were selected randomly from residential telephone directories and mixed with additional numbers generated by the computer. If more than one subject had been available, the one who had his/her birthday next was selected.
The data reported have been adjusted according to the age and gender distributions of the Hong Kong population as reported in the 2001 Population Census.
|Sample size||:||1,517 successful cases|
|Standard error||:||Less than 1.3%|