Table 2.
Risk Factors for Suspected Key Individuals in Cluster C1
| Total | MSM | Heterosexual | Unknown | |||||
|---|---|---|---|---|---|---|---|---|
| No. | Column, % | No. | Row, % | No. | Row, % | No. | Row, % | |
| Gender | ||||||||
| Male | 45 | 90.0 | 31 | 68.9 | 13 | 28.9 | 1 | 2.2 |
| Female | 5 | 10.0 | 0 | 0.0 | 4 | 80.0 | 1 | 20.0 |
| Age | ||||||||
| 17–29 y | 18 | 36.0 | 12 | 66.7 | 5 | 27.8 | 1 | 5.6 |
| 30–39 y | 11 | 22.0 | 8 | 72.7 | 2 | 18.2 | 1 | 9.1 |
| ≥40 y | 21 | 42.0 | 10 | 47.6 | 10 | 47.6 | 1 | 4.8 |
| Infection time | ||||||||
| ≤2 y | 30 | 60.0 | 17 | 56.7 | 12 | 40.0 | 1 | 3.3 |
| >2 y | 20 | 40.0 | 13 | 65.0 | 5 | 25.0 | 2 | 10.0 |
| Infection location | ||||||||
| Jiaxing city | 39 | 78.0 | 24 | 61.5 | 13 | 33.3 | 2 | 5.1 |
| Ambiguous | 11 | 22.0 | 6 | 54.5 | 4 | 36.4 | 1 | 9.1 |
| Fixed venues for sexual contacts | ||||||||
| Yes | 13 | 26.0 | 5 | 38.5 | 6 | 46.2 | 2 | 15.4 |
| No | 37 | 74.0 | 25 | 67.6 | 11 | 29.7 | 1 | 2.7 |
| Sexual contacts outside Jiaxing city | ||||||||
| Yes | 11 | 22.0 | 5 | 45.5 | 4 | 36.4 | 2 | 18.2 |
| No | 39 | 78.0 | 25 | 64.1 | 13 | 33.3 | 1 | 2.6 |
Abbreviation: MSM, men who have sex with men.