Table 1.
Demographic characteristics of clustered COVID-19 patients and asymptomatic cases
| Variables | Transmission generations, n (%) |
|||||
|---|---|---|---|---|---|---|
| Overall (n = 245) |
Index case (n = 92) |
1st generation (n = 95) |
2nd generation (n = 50) |
3rd generation (n = 8) |
P-value | |
| Number of clusters Age, mean ± SD |
60(100.0) 42.4 ± 17.2 |
14(23.3) 42.4 ± 13.7 |
32(53.4) 41.4 ± 19.2 |
9(15.0) 43.0 ± 17.9 |
5(8.3) 32.2 ± 22.3 |
0.503 |
| Gender | 0.369 | |||||
| Male | 121 (49.4) | 51 (55.4) | 46 (48.4) | 20 (40.0) | 4 (50.0) | |
| Female | 124 (50.6) | 41 (44.6) | 49 (51.6) | 30 (60.0) | 4 (50.0) | |
| Occupation | 0.002 | |||||
| Farmer | 141(57.6) | 51(55.4) | 53(55.8) | 32(64.0) | 5(62.5) | |
| Businessman | 32(13.1) | 21(22.8) | 9(9.5) | 2(4.0) | 0(0.0) | |
| Students | 28(11.4) | 2(2.2) | 17(17.9) | 7(14.0) | 2(25.0) | |
| Housework | 23(9.4) | 8(8.7) | 9(9.5) | 6(12.0) | 0(0.0) | |
| Others | 21(8.6) | 10(10.9) | 7(7.4) | 3(6.0) | 1(12.5) | |
| Region | 0.002 | |||||
| South of Anhui | 38 (15.5) | 15 (16.3) | 7 (7.4) | 12 (24.0) | 4 (50.0) | |
| Middle of Anhui | 50 (20.4) | 25 (27.2) | 20 (21.1) | 5 (10.0) | 0(0.0) | |
| North of Anhui | 157 (64.1) | 52 (56.5) | 68 (71.6) | 33 (66.0) | 4 (50.0) | |
| Category | 0.027 | |||||
| Asymptomatic case | 19(7.8) | 3(3.3) | 7(7.4) | 7(14.0) | 2(12.5) | |
| Confirmed case | 226(92.2) | 89(96.7) | 88(92.6) | 43(86.0) | 6(87.5) | |