Table 6 Characteristics of emerging space-time clusters of COVID-19 cases at machi-level in Nagasaki Prefecture from 2020/4/1 to 2022/4/7
Cluster | Period | Duration (Days) | Radius (km) | Observed Cases | Expected Cases | RR | P-value | Machi (Total) | Machi (RR > 1) | Population |
|---|---|---|---|---|---|---|---|---|---|---|
1 | 2022/1/17–2022/4/7 | 80 | 5.61 | 2038 | 199.4 | 10.9 | < 0.001 | 61 | 37 | 68,337 |
2 | 2022/1/12–2022/4/7 | 85 | 4.28 | 2059 | 208.01 | 10.56 | < 0.001 | 55 | 39 | 67,146 |
3 | 2022/1/11–2022/4/7 | 86 | 4.51 | 1941 | 213.67 | 9.65 | < 0.001 | 87 | 68 | 68,182 |
4 | 2022/1/12–2022/4/7 | 85 | 3.66 | 1888 | 203.15 | 9.85 | < 0.001 | 33 | 26 | 65,577 |
5 | 2022/1/13–2022/4/7 | 84 | 3.64 | 1424 | 196.08 | 7.24 | < 0.001 | 18 | 13 | 64,040 |
6 | 2022/1/12–2022/4/7 | 85 | 12.26 | 1233 | 209.81 | 6.09 | < 0.001 | 95 | 41 | 67,726 |
7 | 2022/1/12–2022/4/7 | 85 | 3.06 | 1236 | 212.11 | 6.04 | < 0.001 | 114 | 48 | 68,470 |
8 | 2022/1/12–2022/4/7 | 85 | 10.56 | 1152 | 210.16 | 5.66 | < 0.001 | 112 | 32 | 67,839 |
9 | 2022/1/12–2022/4/7 | 85 | 1.77 | 1134 | 208.99 | 5.6 | < 0.001 | 45 | 17 | 67,464 |
10 | 2022/1/12–2022/4/7 | 85 | 5.15 | 951 | 186.11 | 5.25 | < 0.001 | 32 | 17 | 60,076 |
11 | 2022/1/18–2022/4/7 | 79 | 2.58 | 58 | 21.52 | 2.7 | < 0.05 | 17 | 3 | 12,180 |