| Avoided visiting crowded places | Avoided going out | Avoided visiting hospitals | ||||||
---|---|---|---|---|---|---|---|---|---|
 | Row % | ORU | ORm(95% CI) | Row % | ORU | ORm(95% CI) | Row % | ORU | ORm(95% CI) |
Wave of survey | Â | Â | Â | Â | Â | Â | Â | Â | Â |
   Wave 1 | 57.5 | 1.00 | NS | 47.8 | 1.00 | NS | 67.2 | 1.00 | NS |
   Wave 2 | 56.5 | 0.96 |  | 43.5 | 0.84 |  | 57.7 | 0.67* |  |
   Wave 3 | 48.0 | 0.68* |  | 35.9 | 0.61** |  | 59.7 | 0.72* |  |
Background characteristics | Â | Â | Â | Â | Â | Â | Â | Â | Â |
Gender | Â | Â | Â | Â | Â | Â | Â | Â | Â |
   Male | 48.5 | 1.00 | 1 | 37.4 | 1.00 | 1 | 59.2 | 1.00 | NS |
   Female | 59.8 | 1.58*** | 1.51 (1.15 - 1.98)** | 49.0 | 1.61*** | 1.42 (1.07 - 1.89)* | 66.7 | 1.38* |  |
Age | Â | Â | Â | Â | Â | Â | Â | Â | Â |
   <30 | 38.0 | 1.00 | 1 | 28.8 | 1.00 | 1 | - | - | - |
   30 - 39 | 53.7 | 1.89** | 1.81 (1.22 - 2.69)** | 44.8 | 2.00*** | 2.17 (1.41 - 3.33)*** | - | - |  |
   40 - 49 | 55.9 | 2.07*** | 2.14 (1.48 - 3.10)*** | 42.8 | 1.85** | 2.09 (1.41 - 3.11)*** | - | - |  |
   50 - 60 | 70.0 | 3.81*** | 3.90 (2.67 - 5.70)*** | 58.3 | 3.46*** | 3.66 (2.49 - 5.38)*** | - | - |  |
Education level | Â | Â | Â | Â | Â | Â | Â | Â | Â |
   Form 3 or below | 69.6 | 1.00 | NS | 57.6 | 1.00 | NS | - | - | - |
   Form 4 - matriculation | 54.5 | 0.53** |  | 44.8 | 0.60** |  | - | - |  |
   College or above | 47.7 | 0.40*** |  | 35.7 | 0.41*** |  | - | - |  |
Marital status | Â | Â | Â | Â | Â | Â | Â | Â | Â |
   Single | 40.8 | 1.00 | NS | 31.3 | 1.00 | NS | 56.8 | 1.00 | 1 |
   Married/cohabited | 62.2 | 2.39*** |  | 50.5 | 2.24*** |  | 67.2 | 1.56** | 1.47 (1.11 - 1.95)** |
   Divorced/widowed | 46.7 | 1.27 |  | 33.3 | 1.10 |  | 53.3 | 0.87 | 0.79 (0.28 - 2.29) |
Full-time employed | Â | Â | Â | Â | Â | Â | Â | Â | Â |
   No | - | - | - | 50.2 | 1.00 | 1 | - | - | - |
   Yes | - | - |  | 38.8 | 0.63*** | 0.72 (0.53 - 0.97)* | - | - |  |
Unconfirmed beliefs and knowledge about modes of transmission of H1N1 | Â | Â | Â | Â | Â | Â | Â | Â | Â |
Unconfirmed beliefs about modes of transmission †|  |  |  |  |  |  |  |  |  |
   None | 46.8 | 1.00 | 1 | 34.5 | 1.00 | 1 | 55.8 | 1.00 | 1 |
   At least one item | 60.0 | 1.70*** | 1.67 (1.27 - 2.21)*** | 49.9 | 1.89*** | 1.88 (1.41 - 2.51)*** | 68.2 | 1.70*** | 1.56 (1.18 - 2.05)** |
Correct knowledge about modes of transmission ‡ |  |  |  |  |  |  |  |  |  |
   Not all items being correct | 48.2 | 1.00 | 1 | 37.9 | 1.00 | 1 | 59.2 | 1.00 | NS |
   All items being correct | 59.2 | 1.56** | 1.42 (1.08 - 1.87)* | 47.9 | 1.51** | 1.43 (1.08 - 1.88)* | 66.3 | 1.35* |  |
Evaluation of governmental preparedness and performance in dealing with H1N1 | Â | Â | Â | Â | Â | Â | Â | Â | Â |
Inadequacy of government preparation (health system) § |  |  |  |  |  |  |  |  |  |
   None | - | - | - | 40.5 | 1.00 | NS | - | - | - |
   At least one of the three items | - | - |  | 47.3 | 1.32* |  | - | - |  |
Perceived governmental ability of controlling the epidemic ¶ |  |  |  |  |  |  |  |  |  |
   None | - | - | - | 29.9 | 1.00 | NS | - | - | - |
   At least one of the two items | - | - |  | 45.2 | 1.94* |  | - | - |  |
Governmental performance in dealing with H1N1 (average score of 6 items) # | Â | Â | Â | Â | Â | Â | Â | Â | Â |
   ≤5 | 49.5 | 1.00 | NS | 37.1 | 1.00 | NS | 58.1 | 1.00 | NS |
   >5 - 8 | 53.0 | 1.15 |  | 42.8 | 1.27 |  | 62.3 | 1.19 |  |
   >8 | 64.1 | 1.82* |  | 51.0 | 1.76* |  | 69.5 | 1.65* |  |
   Risk perception |  |  |  |  |  |  |  |  |  |
   Perceived severity of H1N1 |  |  |  |  |  |  |  |  |  |
   High fatality |  |  |  |  |  |  |  |  |  |
   Disagree/unsure | 52.4 | 1.00 | NS | 41.8 | 1.00 | NS | 61.6 | 1.00 | NS |
   Agree | 64.4 | 1.64** |  | 52.4 | 1.53** |  | 70.4 | 1.48* |  |
   Severe irreversible bodily damages |  |  |  |  |  |  |  |  |  |
   Disagree/unsure | 52.8 | 1.00 | NS | 40.9 | 1.00 | 1 | 60.6 | 1.00 | 1 |
   Agree | 63.8 | 1.58** |  | 57.1 | 1.93*** | 1.54 (1.09 - 2.18)* | 75.7 | 2.02*** | 1.81 (1.24 - 2.63)** |
   Perceived chance of having a large scale H1N1 outbreak in Hong Kong in the future year, compared to other countries |  |  |  |  |  |  |  |  |  |
   Hong Kong = other countries | - | - | - | 40.4 | 1 | NS | - | - | - |
   Hong Kong > other countries | - | - |  | 44.3 | 1.18 |  | - | - |  |
   Hong Kong < other countries | - | - |  | 47.2 | 1.32* |  | - | - |  |
   Negative psychological responses |  |  |  |  |  |  |  |  |  |
   Worry much that oneself or family member would contract the disease |  |  |  |  |  |  |  |  |  |
   No | 52.1 | 1.00 | 1 | 41.5 | 1.00 | NS | 61.0 | 1.00 | 1 |
   Yes | 69.6 | 2.10*** | 1.62 (1.07 - 2.47)* | 57.5 | 1.89*** |  | 76.6 | 2.10*** | 1.74 (1.16 - 2.61)** |
   Emotional distress (Feeling much in panic or much depressed or much emotionally disturbed) |  |  |  |  |  |  |  |  |  |
   No | 53.0 | 1.00 | 1 | 42.4 | 1.00 | 1 | 62.5 | 1.00 | NS |
   Yes | 81.7 | 3.94*** | 3.04 (1.42 - 6.48)** | 66.1 | 2.65** | 2.61 (1.42 - 4.79)** | 76.7 | 1.97* |  |