TABLE 1.
Space‐time clusters of local COVID‐19 cases (LR) in the first and second waves of COVID‐19 in Hong Kong
| Cluster | Duration | Observed | Expected | Relative risk | p‐Value | No. LSBGs |
|---|---|---|---|---|---|---|
| 1 | March 22–April 4 | 34 | 0.67 | 55.48 | 0 | 39 |
| 2 | March 18–30 | 22 | 0.39 | 59.89 | 0 | 19 |
| 3 | March 20–April 2 | 13 | 0.20 | 66.16 | .000 | 9 |
| 4 | April 1–9 | 6 | 0.01 | 450.37 | .000 | 1 |
| 5 | March 19–April 1 | 12 | 0.63 | 19.67 | .000 | 32 |
| 6 | March 21–April 1 | 10 | 0.38 | 26.63 | .000 | 2 |
| 7 | March 27–30 | 5 | 0.03 | 163.18 | .000 | 3 |
| 8 | March 26–29 | 6 | 0.12 | 50.79 | .000 | 10 |
| 9 | March 18–23 | 6 | 0.13 | 47.01 | .000 | 7 |
| 10 | March 27–30 | 6 | 0.18 | 34.01 | .016 | 20 |
| 11 | March 17–April 3 | 5 | 0.11 | 44.64 | .041 | 5 |