Gender
| | | | | | | | | |
Male | | | | 1.0 | | | | | |
Female | | | | 2.06 | 1.43 to 2.96 | <0.001 | | | |
Duration of stay in the travel destination (number of nights)
| | | | | | | | | |
Day trip | 1.0 | | | 1.0 | | | | | |
1–7 | 0.32 | 0.20 to 0.51 | <0.001 | 1.84 | 1.28 to 2.65 | 0.001 | | | |
>8 | 0.07 | 0.01 to 0.36 | 0.001 | 2.39 | 1.44 to 3.96 | 0.001 | | | |
Travelled to other
| | | | | | | | | |
Guangdong cities
| | | | | | | | | |
Yes | | | | | | | 1.79 | 1.13 to 2.83 | 0.013 |
No | | | | | | | 1.0 | | |
Frequency of wearing masks in Hong Kong
| | | | | | | | | |
Occasional/never | 1.0 | | | | | | 1.0 | | |
All/most of the time | 7.01 | 3.87 to 12.70 | <0.001 | | | | 1.99 | 1.35 to 2.95 | 0.001 |
Reasons for mask wearing in mainland China
| | | | | | | | | |
To protect oneself | 1.0 | | | | | | | | |
To protect others | 0.38 | 0.18 to 0.80 | 0.012 | | | | | | |
Both | 1.18 | 0.75 to 1.86 | 0.464 | | | | | | |
Perceived efficacy of wearing masks for prevention of SARS
| | | | | | | | | |
Moderate/low/very low | 1.0 | | | | | | | | |
High/very high | 1.71 | 1.11 to 2.65 | 0.016 | | | | | | |
Perceived risk of Hong Kong residents contracting SARS in Shenzhen
| | | | | | | | | |
Moderate/low/very low | 1.0 | | | | | | | | |
High/very high | 2.41 | 1.55 to 3.75 | <0.001 | | | | | | |
Perceived fatality caused by SARS
| | | | | | | | | |
Moderate/low/very low | 1.0 | | | | | | | | |
High/very high | 1.59 | 1.02 to 2.46 | 0.039 | | | | | | |