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Volume 17, Number 12—December 2011

Letter

Changing Perception of Avian Influenza Risk, Hong Kong, 2006–2010

Qiuyan Liao, Benjamin J. Cowling, Wing Tak Lam, and Richard FieldingComments to Author 
Author affiliations: University of Hong Kong, Hong Kong, People’s Republic of China

Main Article

Table

Changes in perception of risk for avian influenza, live poultry exposure, and hygiene practices, Hong Kong, 2006­­­­–2010*

Perception or practice 2006 survey 2010 survey Differences, p value
Risk perception
Perceived likelihood (likely/very likely/certain) 18 14 0.201†
Worry (worry a bit/a lot/all the time) 26 21 <0.001†
Perceived risk from buying live poultry (somewhat agree/agree/strongly agree) 42 31 <0.001†
Live poultry exposure
Buying live poultry (yes) 73 41 0.009‡
Frequency of purchase (at least monthly or more frequently) 50 15 <0.001†
Purchase rate among buyers (chickens/household/y ) 14.4 11.4
Frequency of touch among buyers (sometimes/usually/always) 8 6 0.326§
Averaged touch rate among buyers 0.05 0.05
Averaged exposure among buyers (exposure/household/y) 0.72 0.57 0.011†
Personal hygiene practices
Frequency of washing hands (at least hourly) 49 44 0.023†
Covering mouth when sneezing or coughing (usually/always) 91 85 0.003†
Washing hands after sneezing, coughing, or touching nose (usually/always) 72 75 0.027†
Using liquid soap when washing hands (usually/always) 63 74 <0.001†
Using serving utensils when dining with others (usually/always) 40 62 <0.001†

*Total population surveyed = 461. Values are % unless otherwise stated.
†Wilcoxon signed rank test.
‡McNemar test.
§χ2 test.

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