Table 3.
Predictors for non-household transmission of SARS-CoV-2 infection among secondary cases and uninfected contacts.
| Social distancing activities undertaken |
N = 252 |
OR (CI) (N = 98) |
P-value | |
|---|---|---|---|---|
| Non-cases | Secondary cases | |||
| N = 218 | N = 34 | |||
| Deliberately cancelled or postponed a social event, n = 148 | ||||
| Yes | 81 (65.32%) | 19 (79.17%) | 1.82(0.73,4.59) | 0.202 |
| No | 43 (34.68%) | 5 (20.83%) | Ref | |
| Cancelled or delayed travelling overseas, n = 107 | ||||
| Yes | 52 (57.78%) | 5 (29.41%) | 0.37(0.14,0.97) | 0.042 |
| No | 38 (42.22%) | 12 (70.59%) | Ref | |
| Reduced the use of public transport, n = 144 | ||||
| Yes | 100 (81.97%) | 19 (86.36%) | 1.33(0.43,4.16) | 0.623 |
| No | 22 (18.03%) | 3 (13.64%) | Ref | |
| Increased the amount of household products purchased, n = 161 | ||||
| Yes | 72 (53.33%) | 19 (73.08%) | 2.09(0.93,4.69) | 0.074 |
| No | 63 (46.67%) | 7 (26.92%) | Ref | |
| Parents kept one or more of their children out of school or pre-school, n = 108 | ||||
| Yes | 41 (45.05%) | 8 (47.06%) | 1.07(0.45,2.56) | 0.879 |
| No | 50 (54.95%) | 9 (52.94%) | Ref | |
| Kept children home during school closure, n = 153 | ||||
| Never | 10 ( 7.87%) | 3 (11.54%) | Ref | |
| Always | 99 (77.95%) | 18 (69.23%) | 0.67(0.23,1.96) | 0.462 |
| Sometimes | 18 (14.17%) | 5 (19.23%) | 0.94(0.27,3.32) | 0.926 |
| Kept away from crowded places generally, n = 162 | ||||
| Yes | 113 (83.09%) | 21 (80.77%) | 0.88(0.36,2.13) | 0.773 |
| No | 23 (16.91%) | 5 (19.23%) | Ref | |
| Increased the time I spent cleaning or disinfect things I might touch, such as d, n=161 | ||||
| Yes | 93 (68.89%) | 20 (76.92%) | 1.42(0.61,3.31) | 0.421 |
| No | 42 (31.11%) | 6 (23.08%) | Ref | |
| Washed my hands with soap and water more often than usual, n = 168 | ||||
| Yes | 118 (83.10%) | 23 (88.46%) | 1.47(0.47,4.55) | 0.506 |
| No | 24 (16.90%) | 3 (11.54%) | Ref | |
| Used alcoholic hand gel more than usual, or hand sanitizer, n = 171 | ||||
| Yes | 105 (71.92%) | 20 (80.00%) | 1.47(0.59,3.69) | 0.41 |
| No | 41 (28.08%) | 5 (20.00%) | Ref | |
| Increased my use of vitamins or oral supplements, n = 163 | ||||
| Yes | 76 (55.47%) | 17 (65.38%) | 1.42(0.67,3) | 0.355 |
| No | 61 (44.53%) | 9 (34.62%) | Ref | |
| Worked from home, n = 146 | ||||
| Never | 26 (20.97%) | 3 (13.64%) | Ref | |
| Always | 73 (58.87%) | 15 (68.18%) | 1.65(0.51,5.29) | 0.401 |
| Sometimes | 25 (20.16%) | 4 (18.18%) | 1.33(0.33,5.44) | 0.688 |
| Stayed in quarantine at home (until test results were available), n = 173 | ||||
| Never | 13 ( 8.97%) | 2 ( 7.14%) | Ref | |
| Always | 116 (80.00%) | 23 (82.14%) | 1.24(0.32,4.75) | 0.753 |
| Sometimes | 16 (11.03%) | 3 (10.71%) | 1.18(0.23,6.2) | 0.841 |
| Avoided going to a large event like a sports match, n = 175 | ||||
| Never | 14 ( 9.40%) | 0 ( 0.00%) | Ref | |
| Always | 120 (80.54%) | 23 (88.46%) | 0.97(0.32,2.9) | 0.949 |
| Sometimes | 15 (10.07%) | 3 (11.54%) | - | |