Table 1.
Demographic Variables and Risk Factors by Infecting Subtype
| CRF01_AE (n = 61) | B (n = 26) | RF1 (n = 13) | |
|---|---|---|---|
| Age (median) (IQR) | 37 (29–47) | 30 (27–38) | 40 (30–45) |
| Gender | |||
| Males (%) | 51 (85) | 24 (92) | 12 (92) |
| Females (%) | 9 (15) | 2 (8) | 1 (8) |
| Ethnicity | |||
| Chinese (%) | 52 (85) | 20 (77) | 10 (77) |
| Others (%) | 9 (15) | 6 (23) | 3 (23) |
| Risk factor | |||
| Heterosexual (%) | 35 (57) | 8 (31) | 1 (8) |
| Homosexual (%) | 23 (38) | 13 (50) | 7 (54) |
| Bisexual (%) | 2 (3) | 3 (12) | 4 (31) |
| Others (%) | 1 (2) | 2 (8) | 1 (8) |
The chi-square test for comparing risk factor by different subtypes was significant with a p = 0.001. The only other significant test was for the comparison of median age between CRF01_AE and B where p = 0.017 (Wilcoxon rank-sum). One person in the CRF01_AE group was missing gender information.