Practice of preventive behaviours
| Date of interview | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Initial phase | Second phase | |||||||||||||
| 21.3 | 22.3 | 23.3 | 24.3 | 28.3 | 1.4 | 8.4 | 11.4 | 24.4 | 12.5 | All | p Value† | p Value‡ | p Value§ | |
| †For comparison from 21/3 to 1/4 and derived from two sided linear by linear χ2 test; | ||||||||||||||
| ‡for comparison from 1/4 to 12/5 and derived from two sided linear by linear χ2 test; | ||||||||||||||
| §χ2 tests for comparisons between phase 1 (not including 1.4) and phase 2; | ||||||||||||||
| *, ¶ and **OR ⩾1 and<2, ⩾2, and<4, ⩾4, respectively and p<0.05, for comparison with the reference (21/3) or the first column of data while controlling for age, gender and levels of education; | ||||||||||||||
| ††, §§ and ‡‡OR ⩾0.5 and<1, ⩾0.25, and<0.5, <0.25, respectively, and p<0.05, for comparison with the reference (21/3) or the first column while controlling for age, gender, and levels of education;—data not collected for those rounds of survey; | ||||||||||||||
| ***significantly increased from the initial phase to the second phase (p<0.05 by χ2 test); | ||||||||||||||
| ¶¶significantly decreased from the initial phase to the second phase (p<0.05 by χ2 test). | ||||||||||||||
| Hygiene Measures | ||||||||||||||
| Wearing a mask (%)§ | 11.5 | 16.7 | 7.7 | 16.7 | 66.9** | 84.3** | 87.3** | 87.7** | 93.9** | 85.4** | 64.3 | <0.001 | 0.225 | <0.001*** |
| Hand hydiene (%)§ | 61.5 | 66.7 | 63.7 | 80.3¶ | 94.1** | 95.1** | 93.7** | 94.2** | 94.5** | 95.9** | 86.9 | <0.001 | 0.676 | <0.001*** |
| Disinfecting home (%)§, ¶ | - | - | – | 36.4 | 56.8¶ | 69.4** | 72.2** | 80.0** | 83.5** | 73.1** | 70.1 | <0.001 | 0.022 | <0.001*** |
| Behaviours | ||||||||||||||
| Avoid going outside(%)§, ¶ | 28.2 | 28.2 | 31.9 | 36.4 | 50.0¶ | 57.1¶ | 62.4** | 58.7¶ | 47.3¶ | 36.3 | 45.8 | <0.001 | <0.001 | <0.001*** |
| Avoid crowded places (%)§, ¶ | 59.0 | 67.7 | 54.9 | 68.2 | 76.3¶ | 85.4** | 81.0¶ | 89.0** | 81.2¶ | 69.6* | 75.5 | <0.001 | 0.036 | <0.001*** |
| Avoid visiting hospitals(%)§ | 59.7 | 63.5 | 52.7 | 62.1 | 73.4* | 75.0¶ | 76.4¶ | 86.5** | 79.9¶ | 68.6 | 71.8 | 0.001 | 0.892 | <0.001*** |
| Avoid using public transportation(%)§, ¶ | 14.1 | 15.4 | 16.5 | 24.2 | 26.6¶ | 36.2¶ | 27.8¶ | 31.0¶ | 25.0¶ | 17.1 | 24.4 | <0.001 | 0.002 | 0.001*** |
| Avoid going to work (%)§, ¶ | – | 2.6 | 2.2 | 4.5 | 6.1 | 8.1 | 7.7 | 7.3 | 5.5 | 1.2 | 4.9 | 0.002 | 0.018 | 0.038*** |
| Not allow kids to go to school (%)§, ¶ | – | – | – | 12.5 | 35.7** | 38.1** | 31.0¶ | 36.7** | 39.6** | 16.3 | 31.6 | 0.013 | 0.032 | 0.397 |
| Avoid going to China (%) | – | – | – | – | 64.5 | 69.6 | 72.2 | 75.5* | 78.7¶ | 65.1 | 70.8 | 0.312 | 0.835 | 0.050 |
| Leave Hong Kong temporarily (%) | 5.1 | 2.6 | 3.3 | 6.2 | 2.4 | 5.4 | 2.5 | 3.2 | 6.1 | 2.9 | 3.8 | 0.340 | 0.876 | 0.524 |