Table 4. Characteristics of cluster cases.
| Characteristic | Source of infection(n = 30) | Secondary cases (n = 44) | Test statistics | P value |
|---|---|---|---|---|
| Gender | ||||
| Male (n = 41) | 20 | 21 | χ2 = 2.59 | 0.153 |
| Female (n = 33) | 10 | 23 | ||
| Occupation | ||||
| Food and beverage industry (n = 1) | 1 | 0 | - | - |
| Officers (n = 14) | 8 | 6 | ||
| Workers (n = 3) | 1 | 2 | ||
| Public places attendant (n = 2) | 0 | 2 | ||
| Houseworkers and unemployed (n = 13) | 3 | 10 | ||
| Retirees (n = 11) | 5 | 6 | ||
| workforce (n = 1) | 1 | 0 | ||
| Farmers (n = 9) | 1 | 8 | ||
| Others (n = 6) | 4 | 2 | ||
| Business services (n = 5) | 3 | 2 | ||
| Students (n = 3) | 1 | 2 | ||
| Medical staff (n = 3) | 1 | 2 | ||
| Unknown (n = 3) | 1 | 2 | ||
| Area | ||||
| Urban (n = 62) | 27 | 35 | - | 0.339* |
| Rural (n = 12) | 3 | 9 | ||
| severity | ||||
| Asymptomatic cases (n = 3) | 0 | 3 | - | 4.92* |
| Mild Cases (n = 29) | 13 | 16 | ||
| Normal Cases (n = 38) | 16 | 22 | ||
| Severe Cases (n = 3) | 0 | 3 | ||
| Critical Cases (n = 1) | 1 | 0 | ||
| Cases type | ||||
| Imported cases (n = 45) | 24 | 2 | χ2 = 44.562 | 0 |
| Non-imported cases (n = 45) | 6 | 42 | ||
| The detected method | ||||
| Outpatient found (n = 23) | 19 | 4 | χ2 = 24.501 | 0 |
| Active screening (n = 51) | 11 | 40 | ||
| Age (n) | ||||
| Median (Range) | 44.5 (10,77) | 44 (7,89) | t = 0.045 | 0.965 |
| Days from illness onset to diagnosis | ||||
| Median (Range) | 5 (0,11) | 6 (0,13) | Z = -0.181 | 0.856 |
| Days from diagnosis to discharged from hospital time | ||||
| Median (Range) | 17 (8,28) | 18 (8,25) | Z = -0.48 | 0.962 |
| Days from onset time to discharged from hospital time | ||||
| Median (Range) | 21 (11,38) | 22.5 (11,32) | Z = -0.137 | 0.891 |
* = Fisher’s exact probability test.