Table 3 Multiple linearity diagnosis of factors associated with risk discordance
| Â | Tolerance | VIF |
|---|---|---|
X1: gender | 0.97 | 1.03 |
X2: Sexual orientation | 0.99 | 1.01 |
X3: Major | 0.95 | 1.06 |
X4: Grade | 0.98 | 1.02 |
X5: Age at first sex | 0.95 | 1.05 |
X6: HIV-related knowledge | 0.90 | 1.11 |
X7: HIV-related stigma | 0.91 | 1.10 |
X8: Testing history | 0.98 | 1.02 |
X9: Self-efficacy of condom use | 0.93 | 1.08 |
X10: Monthly expenditure | 0.96 | 1.04 |
X11: Residential areas | 0.96 | 1.04 |
X12: Knowledge of local AIDS organization | 0.93 | 1.08 |
X11: Awareness of the national AIDS policy | 0.88 | 1.13 |