Parameters that determine the dynamics of sexual partnerships and the transmission of C. trachomatis.

The different models (instantaneous contact, pair and triple model) are adjusted so that the total number of newly formed contacts or partnerships and the total number of realized sex acts are equal. To achieve the same steady-state prevalence of C. trachomatis, the transmission probability is varied between the models while keeping the mean duration of the infection the same. This ensures that the incidence of C. trachomatis infection is equal in all models. The level of concurrency at cross-section is defined as the ratio of individuals that have more than one partnership to all individuals in a partnership. Some parameters are given as rounded values.