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Table 2 HIV prevalence at different degrees of concurrency with 75%, 55%, 35%, 25%, 15%, and 0% coital dilution at 0 to 250 years

From: HIV and concurrent sexual partnerships: modelling the role of coital dilution

Time

0% Concurrency

3% Concurrency

7% Concurrency

10% Concurrency

12% Concurrency

14% Concurrency

75% coital dilution (daily risk of infection in non-primary partnerships is 25% of primary partnership risk)

0 years

1.00%

1.00%

1.00%

1.00%

1.00%

1.00%

10 years

0.81%

0.72%

0.64%

0.58%

0.52%

0.51%

25 years

0.56%

0.41%

0.29%

0.23%

0.17%

0.16%

50 years

0.29%

0.15%

0.08%

0.04%

0.03%

0.02%

100 years

0.09%

0.02%

0.01%

0.00%

0.00%

0.00%

250 years

0.00%

0.00%

0.00%

0.00%

0.00%

0.00%

55% coital dilution (daily risk of infection in non-primary partnerships is 45% of primary partnership risk)

0 years

1.00%

1.00%

1.00%

1.00%

1.00%

1.00%

10 years

0.81%

0.75%

0.71%

0.70%

0.68%

0.70%

25 years

0.57%

0.45%

0.40%

0.36%

0.35%

0.37%

50 years

0.30%

0.21%

0.16%

0.13%

0.12%

0.14%

100 years

0.09%

0.04%

0.03%

0.01%

0.01%

0.02%

250 years

0.00%

0.00%

0.00%

0.00%

0.00%

0.00%

35% coital dilution (daily risk of infection in non-primary partnerships is 65% of primary partnership risk)

0 years

1.00%

1.00%

1.00%

1.00%

1.00%

1.00%

10 years

0.81%

0.80%

0.81%

0.82%

0.85%

0.92%

25 years

0.56%

0.55%

0.55%

0.59%

0.64%

0.80%

50 years

0.30%

0.29%

0.28%

0.33%

0.41%

0.64%

100 years

0.09%

0.07%

0.07%

0.10%

0.18%

0.38%

250 years

0.00%

0.00%

0.00%

0.01%

0.02%

0.08%

25% coital dilution (daily risk of infection in non-primary partnerships is 75% of primary partnership risk)

0 years

1.00%

1.00%

1.00%

1.00%

1.00%

1.00%

10 years

0.81%

0.81%

0.84%

0.89%

0.97%

1.06%

25 years

0.56%

0.57%

0.62%

0.71%

0.86%

1.13%

50 years

0.29%

0.32%

0.35%

0.51%

0.71%

1.21%

100 years

0.09%

0.10%

0.14%

0.25%

0.54%

1.41%

250 years

0.00%

0.00%

0.01%

0.03%

0.20%

1.80%

15% coital dilution (daily risk of infection in non-primary partnerships is 85% of primary partnership risk)

0 years

1.00%

1.00%

1.00%

1.00%

1.00%

1.00%

10 years

0.81%

0.86%

0.88%

0.96%

1.03%

1.18%

25 years

0.56%

0.63%

0.70%

0.89%

1.09%

1.49%

50 years

0.29%

0.38%

0.51%

0.75%

1.21%

2.27%

100 years

0.09%

0.13%

0.25%

0.58%

1.48%

4.20%

250 years

0.00%

0.01%

0.03%

0.21%

2.25%

8.26%

No coital dilution (daily risk of infection in non-primary partnerships is the same as primary partnership risk)

0 years

1.00%

1.00%

1.00%

1.00%

1.00%

1.00%

10 years

0.81%

0.87%

0.96%

1.08%

1.21%

1.42%

25 years

0.57%

0.67%

0.86%

1.19%

1.64%

2.42%

50 years

0.30%

0.42%

0.73%

1.38%

2.61%

5.29%

100 years

0.10%

0.18%

0.52%

1.71%

5.37%

12.42%

250 years

0.00%

.02%

0.19%

2.72%

10.02%

15.70%