Table 1.

 Characteristics of participants and intention to take up vaccination against influenza A/H1N1 according to five hypothetical scenarios

Variables	No (%) of participants (n=301)
Men	136 (45)
Women	165 (55)
Age (years):
<30	76 (25)
30-39	64 (21)
40-49	86 (29)
50-60	75 (25)
Education level*:
Form 3 or below	58 (19)
Form 4—matriculation	130 (44)
College or above	111 (37)
Marital status:
Single	105 (35)
Married or cohabiting	189 (63)
Divorced or widowed	5 (2)
Full time employment:
No	123 (41)
Yes	177 (59)
Ever had influenza vaccination:
No	240 (80)
Yes	61 (20)
Hypothetical scenarios for influenza A/H1N1 vaccination
Vaccination is free:
Unlikely or unsure†	166 (55)
Highly likely‡	135 (45)
Vaccination costs <$HK100:
Unlikely or unsure†	193 (64)
Highly likely‡	108 (36)
Vaccination costs $HK101-200:
Unlikely or unsure†	229 (76)
Highly likely‡	72 (24)
Vaccination costs >$HK200:
Unlikely or unsure†	256 (85)
Highly likely‡	45 (15)
Vaccine efficacy and safety have not been confirmed by clinical trials:
Unlikely or unsure†	287 (95)
Highly likely‡	14 (5)

Based on census data to end of 2008 from Census and Statistics Department Hong Kong, 2009. 46% of men and 54% of women were aged 18-60; 25% of participants were aged <30, 24% were aged 30-39, 27% were aged 40-49, and 24% were aged 50-60.

*Form 3 is equivalent to ninth year of formal education and form 4 to 10th year. On completion of 11 years of formal education, students are required to take the two year matriculation programme to enter universities.

†Mostly not, certainly not, or unsure.

‡Mostly or certainly.