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. 2009 Oct 27;339:b4164. doi: 10.1136/bmj.b4164

Table 2.

 Participants’ knowledge and perceptions of influenza A/H1N1 and its vaccine

Variables No (%) of participants (n=301)
Knowledge on modes of transmission
Correct knowledge about modes of transmission:
 Could be transmitted via droplets (for example, sneezing) 291 (97)
 Could be transmitted via touching body of infected person 203 (67)
 Could be transmitted via touching contaminated objects 196 (65)
All above items are correct:
 No 148 (49)
 Yes 153 (51)
Perceptions related to severity of influenza A/H1N1
Fatality rate for adults:
 <1% 181 (60)
 1-5% 67 (22)
 >5% 23 (8)
 Don’t know 30 (10)
Would cause severe and irreversible damage to body of adults:
 Disagree 232 (77)
 Agree 41 (14)
 Don’t know 28 (9)
No of deaths in Hong Kong in coming year:
 None 87 (30)
 1-10 162 (57)
 11-50 32 (11)
 >50 5 (2)
No of hidden cases in community:
 Very few 56 (19)
 A few 121 (41)
 Quite a lot or many 118 (40)
Chance of having large scale local outbreak of influenza A/H1N1 in coming year:
 Unlikely, most unlikely, certainly not, unsure 218 (72)
 Certainly, most likely, likely 83 (28)
Risk perception
High or very high chance of contracting influenza A/H1N1 in coming year:
 Participant 31 (10)
 Family members 30 (10)
 General public 35 (12)
Comparisons of influenza A/H1N1 to seasonal influenza
Fatality rate:
 Much lower, a little lower, or same 190 (64)
 A bit higher or much higher 108 (36)
Transmission rate:
 Much lower, a little lower, same 173 (58)
 A bit higher or much higher 126 (42)
Severity of damage to body:
 Much lower, a little lower, same 196 (67)
 A bit higher or much higher 95 (33)
Perceptions related to influenza A/H1N1 vaccine
Vaccination is inconvenient:
 Disagree, strongly disagree, unsure 219 (73)
 Agree or strongly agree 81 (27)
Vaccine is effective for prevention of influenza A/H1N1:
 Disagree, strongly disagree, or unsure 183 (61)
 Agree or strongly agree 117 (39)
Efficacy of present A/H1N1 vaccine has been confirmed by clinical trials:
 No 44 (15)
 Yes 189 (63)
 Don’t know 67 (22)
Perceived side effects:
 None or a few 162 (54)
 Quite a lot or severe 49 (16)
 Don’t know 88 (29)
Vaccination against influenza A/H1N1 should be universal in Hong Kong:
 Completely not necessary 95 (32)
 Not quite necessary 146 (49)
 Quite necessary or highly necessary 49 (16)
 Don’t know or unsure 11 (4)