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| Variable | Risk Score |
| Age less than or equal to 19 | +1, else +0 |
| Lifetime partners 1 | +0 |
| Lifetime partners 2–5, | +2 for men, +3 for women |
| Lifetime partners 6+ | +3 for men, +5 for women |
| New relationship in last 6 months? | +1, else +0 |
| Cutoff value for men: | 20% has a risk-score<2, and is excluded from screening |
| Cutoff value for women: | 18% has a risk-score<3, and is excluded from screening |
