Perceived risk of SARS transmission at different places
| 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 test 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 of data 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). | ||||||||||||||
| Working in office (very high/high)§, ¶ | 21.8 | 23.8 | 27.5 | 29.7 | 32.0 | 33.7 | 17.7 | 23.2 | 24.2 | 11.6 | 24.3 | 0.031 | 0.004 | 0.033¶¶ |
| Using public transportation vehicles (very high/high)§ | 40.0 | 52.0 | 50.5 | 57.8¶ | 66.9¶ | 62.7¶ | 38.0 | 54.8* | 48.5 | 38.4 | 51.4 | 0.004 | 0.077 | 0.016¶¶ |
| Eating in restaurants(very high/high)¶ | 33.8 | 41.8 | 44.0 | 48.4 | 53.3¶ | 45.7 | 26.6 | 29.7 | 32.7 | 25.0 | 37.5 | 0.335 | 0.009 | <0.001¶¶ |
| Walking in the street (very high/high) | 11.7 | 15.0 | 18.7 | 24.6¶ | 19.5 | 15.1 | 5.7 | 7.1 | 7.9 | 6.4 | 12.2 | 0.744 | 0.055 | <0.001¶¶ |
| Using lifts (very high/high)¶ | – | – | – | – | – | 55.1 | 37.3§§ | 44.5 | 32.1§§ | 30.8§§ | 40.2 | – | <0.001 | – |
| Going to cinema (very high/high)§, ¶ | 31.2 | 41.4 | 44.0 | 47.7¶ | 56.8¶ | 57.6¶ | 35.0 | 39.4 | 47.3¶ | 25.0 | 43.0 | <0.001 | <0.001 | 0.085 |
| Trips to Guangdong (very high/high)§ | 71.1 | 77.1 | 69.7 | 72.7 | 82.1¶ | 83.2¶ | 75.9 | 83.2¶ | 89.7¶ | 77.3 | 79.6 | 0.010 | 0.404 | 0.008*** |
| Trips to other provinces, Mainland China (very high/high)§, ¶ | 37.3 | 45.6 | 47.8 | 43.1 | 63.5¶ | 64.1¶ | 50.6* | 59.4¶ | 78.2** | 71.9** | 59.1 | <0.001 | <0.001 | <0.001*** |