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Date of survey

:

October 21 to 31, 2013

Survey method

:

Telephone survey conducted by female telephone interviewers

Target population

:

Cantonese-speaking Hong Kong female citizens of age 18-45 who are married or in a relationship with a stable partner

Sampling method

:

Telephone numbers were selected randomly from residential telephone directories and mixed with additional numbers generated by the computer. If more than one eligible subject had been available, the one who had her birthday next was selected.

Sample size

:

502 successful cases

Effective response rate

:

78.2%

Std. sampling error

:

At 95% confidence level, the maximum sampling error of all percentages should be no more than +/-4.5 percentage points

Date of survey

:

October 21 to November 14, 2013

Survey method

:

Telephone survey conducted by female telephone interviewers

Target population

:

Cantonese-speaking Hong Kong female citizens of age 18-45 who are married or in a relationship with a stable partner, and planning for pregnancy

Sampling method

:

Telephone numbers were selected randomly from residential telephone directories and mixed with additional numbers generated by the computer. If more than one eligible subject had been available, the one who had her birthday next was selected.

Sample size

:

304 successful cases (116 successful cases from the main sample)

Effective response rate

:

70.6%

Std. sampling error

:

At 95% confidence level, the maximum sampling error of all percentages should be no more than +/-4.5 percentage points