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The cumulative probability of new partners Pcum(Δj) = Σi≥j P(Δi) as function of the new partners Δj in the 1-year study period. The probabilities were calculated by using the model parameter (Table 1) and by conditioning on the initial numbers of partners j1, j2, … jn in the study populations. (A) Results for women in the 3-year observation period. (B) Results for men in the 3-year observation period.
